2017 jeep wrangler sport p0128 diagnostic procedure pdf. 2017 jeep wrangler sport p0128 diagnostic procedure pdf. Answered in 2 minutes by: Jeep Mechanic: Mechanic01. Mechanic01. Category: Jeep. Satisfied Customers: 23,736. Experience: Owner at Baltic investments. Verified.Nov 5, 2018 · Fixing P0128 in the Jeep Cherokee is usually a pretty easy thing to do since, 90% of the time, a stuck thermostat will cause the problem. Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. When a thermostat is stuck open, it allows ...P0128 code: replacing your 2012-2017 jeep jk thermostat P0128 replace thermostat 2.4l jeep dodge chrysler by the book. part 1 2012-2016 jeep wrangler / cherokee 2012-2016 Jeep Wrangler / Cherokee - Thermostat Replace P0128 Codetmoca Discussion starter. 77 posts · Joined 2010. #1 · Oct 27, 2021. Okay, so my engine light came on today. Stopped by the auto parts store to have the code checked. Came back P0128 stating coolant temp below regular temp. So the guy suggested a thermostat said it is quite common. I also snagged some coolant to top it off, because I …Keep your ride's engine temperatures in check with a new 2017 Jeep Wrangler thermostat. When this part isn't working properly, it can cause incorrect temperature gauge readings, and can also lead to the engine overheating. Check out the 2017 Wrangler thermostats above and choose the right part for you.5465 posts · Joined 2012. #4 · Oct 23, 2013. If you are 100% positive that it's not the cap (i bet it is) then you have a large evap leak somewhere. Lots of good info on the web, 99% point to a bad cap. P0457 Jeep EVAP System Loose Fuel Cap OBDII Engine Light Trouble Code | Engine-Codes.com. Like. bigcat.P0128 JEEP Possible Causes. Leaking or stuck open thermostat. Low engine coolant level. Insufficient warm up time. Faulty engine coolant temperature sensor. Engine coolant temperature sensor harness open circuit or short circuit to ground or voltage from wire damage or insulation damage. Engine coolant temperature sensor circuit poor electrical ...Research the 2017 Jeep Wrangler at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory.P0128 jeep cherokee 2.4l thermostat. watch how to replace in part 2P0128 jk replacing thermostat 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 code2014 jeep cherokee mileage update: 2,896 miles. ... P0128 Code: Replacing your 2012-2017 Jeep JK Thermostat - YouTube. Check Details. 2014 Jeep Cherokee 4×4 North V6 | www.motorpress.ca ...P0128 jeep wrangler coolant sensor replace diyP0340 aed1 410c 2013 jeep wrangler code p0128Introducir 81+ imagen engine code p0128 jeep wrangler. 2013 jeep wrangler code p0128P0128 jeep wrangler Jeep tops by pavement ends for 2013 wranglerJeep wrangler p0456: evap system - small leak.Overview on how to replace the thermostat on 2012 - 2017 Jeep Wranglers with 3.6L engine. This had the P0128 code. Hardest part of the job is bleeding the ...2017 JKUR 3.6 w/52k miles. @ my last oil change I tossed in 6 ozs of SeaFoam. Figured it would do some good to clean things up a bit. ... A forum community dedicated to Jeep Wrangler JK owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, reviews, engine swaps, troubleshooting, suspension, and more! ...P0128 Thermostat gasket/Housing replacement tutorial on a 2013 Jeep Wrangler 3.6 Don't forget to like and sub! Need help?Safety isn’t everyone’s primary concern, however, and a poor safety rating isn’t going to stop yet another generation of off-roaders and free spirits from turning to the Wrangler. Browse the best May 2024 deals on 2017 Jeep Wrangler vehicles for sale. Save $17,069 this May on a 2017 Jeep Wrangler on CarGurus.What is P0128 Jeep JK Diagnostic Code? This is a DIY video for Jeep JK Thermostat Replacement...Parts:1) Mopar Thermostat w/housing - https://www.amazon.com...Learn how to replace the temperature sensor in your 2007-2017 Jeep Wrangler. This is an easy to perform auto repair that can be performed in your driveway.🔧...If this video in any way helped you save time and money, please consider donating.Paypal Donate Link here: https://www.paypal.me/OnlineMechanicTips?locale.x=...P1607 Jeep Code - Powertrain Control Module Internal Shutdown Timer Slow Rationality - Code Popularity: 47,728 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Table of contents. Created and updated by William Orellana on Feb 12, 2024. Possible Causes;2014 Jeep Wrangler Review. Check Details. 2012-2016 Jeep Wrangler / Cherokee - Thermostat Replace P0128 Code. Check Details. Diagnose and fix Jeep wrangler P0457 - YouTube. Check Details. P0128 code 2013 Jeep Wrangler | Which Antifreeze to Use | Thermostat R. Check Details. P0128: low temp code incident | Jeep Wrangler TJ Forum. Check DetailsOverheating. In cases where the P0128 Jeep code signifies that the power mill is running hotter, engine overheating is likely to occur. The latter may be linked to low coolant levels or a bad radiator/water pump for the most part. But let us not forget that this outcome can also trace back to a faulty thermostat.Fixing P0128 in the Jeep Renegade is usually a pretty easy thing to do since, 90% of the time, a stuck thermostat will cause the problem. Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. When a thermostat is stuck open, it …P0128 - Thermostat Repalcement Question. 2013 JK. Recently started getting cold here in Texas. Had the Check Engine light come on with this stupid code. Reset, warmed up and code did not come back. Got cold again and it come on again, sot its on all the time. Did the research to the Thermostat and/ or the Temp Sensor on the side of the block.2016, 3.6 Check Engine light P0128 coolant temp code. ... A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, ...c.d.c. This code sets when the ECM sees that the engine takes to long to warm up. This usually happens because the thermostat is either stuck open or opening sooner than it should. It is a pretty global cause and correction for P0128 across many makes and models of vehicles. Replacing the T-stat should take care of this and you should not have ...Diagnose and fix jeep wrangler p0457Jeep p0128 renegade thermostat Dtc p0128 how to replace the thermostat on a 2.4l jeep dodge chrysler2015-2018 jeep renegade code p0128 thermostat fix. P0128 antifreezeP0128: low temp code incident 2012 jeep grand cherokee/wrangler 3.6 thermostat p0128 codeJeep wrangler p0456: evap system - small leak.Model Specific Jeep Discussions. Wrangler JK (Model years 2007-2018) JK Technical Discussion ...Fault Code P0128 advice. Hi all... got a P0128 fault this morning. Using Torque and a cheap bluetooth OBD reader, Torque states: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). Ensured radiator and reservoir were appropriate levels (quick/easy fix). Tried the 3 trip reset afterwards, no change.P0138 is a common OBDII code that occurs in many vehicles, including the Jeep Wrangler. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause …Jeep wrangler concept review suv redesign price advertisement unlimited hotJeep wrangler 2012 gets pentastar 3.6-litre v6 P0128 antifreezeIntroducir 81+ imagen engine code p0128 jeep wrangler. Heavily modified 2017 jeep wrangler is a devilish off-roaderIntroducir 81+ imagen engine code p0128 jeep wrangler 2015 jeep wrangler code p0128Wrangler ...HI @Jonathan, The P0128 code is very common. Your Cherokee's computer knows how long it should take for the car to warm up. Using the sensors that measure the air temp (ambient) as well as the temperature of the coolant, if the computer finds a deviation from what it expects or the value is completely out of bounds from what it should be (rationality), it illuminates the CEL and saves a P0128 ...P0128 code. Jump to Latest Follow 21 - 34 of 34 Posts. 1 2. A. allikanbe1 · Registered ... Joined May 9, 2017 ... Jeep Wrangler Forum. 9M posts 468.8K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds ...Labor: 1.0. To diagnose the P0032 Jeep code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Share. mrpittman. • 2 yr. ago. So this code means one of two things, either the thermostat is bad but you changed it so now the sensor needs to be replaced. That will fix it, temp sensor drivers side of the block towards the back its going to make a mess because its at the lowest point but get your tools and clear an area and you'll be fine ...Great info in this thread to help reinforce that replacing the thermostat was the best choice. Part cost was $22 at autozone. Duralast Thermostat and Housing 82303DL. Job was super easy and easier bc I watched a youtube vid. Jeep Dealership in Huntington Beach quoted me $475 when the OEM part only costs $45 LOL. Like.We reviewed Seven Corners Travel Insurance, including pros and cons, pricing, plans, customer experience and accessibility. By clicking "TRY IT", I agree to receive newsletters and...Marissawalkerjones94 Discussion starter. 1 post · Joined 2020. #1 · Feb 3, 2021. I have a 2015 Jeep Wrangler with thermostat rationality throwing a code on my jeep. The tech said it could just be a sticking thermostat but upon reading it could be an engine coolant temp sensor. My temp runs normal on my jeep, & everything runs normal.Make: Jeep. Code: P258B. Definition: Electric Vacuum Pump Performance. Description: The Electric Vacuum Pump (EVP) system is installed to provide supplemental vacuum to the brake booster, when the engine vacuum supply is low. The pump is connected to the engine and the brake booster through a series of hoses and one-way flow check valves.This page is meant to help you troubleshoot the Jeep Wrangler P0420 trouble code. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. TableFeb 17, 2020 · 548 posts · Joined 2014. #1 · Feb 17, 2020. Hi all. I got DTC code P0128 this morning - probably stuck thermostat. 2015 JKU with almost 80K... so probably it's time. Jeep is covered with lifetime powertrain warranty.2014 Jeep Wrangler sport unlimited 4x4changing those things should get rid of a check engine code p0128 code "coolant temp below thermostat"Changing out bad ...JEEP CHEROKEE CODE P0128 ENGINE LIGHT ON 2014 2015 2016 2017 2018 2019 2020If you have Jeep Cherokee and you have Code P0128 and your engine light is on we w...34 posts · Joined 2012. #23 · Jan 13, 2017. Heads up that my 2012 JKU threw a P0128 and it was just because my coolant level had dropped below the min line. The colder weather was enough to trigger it. Once I added some coolant the code cleared and the CEL went away after about 3 drive cycles (about 3 days later).A coolant temp sensor is code 0118, after parts installation, I cleared the codes. Now check engine light came on within a few days of driving, P0128, T-stat stuck open, PO said he replaced with a new one, I went ahead and put in a non-valve SuperStant 195deg. Cleared codes.Jeep Wrangler: P2181 Symptoms. Engine overheating. Engine too cold. No/low heat. Stalling, rough idle. If the engine is stalling and running rough after getting this code, it is likely that the head gasket could be blown if it got hot. If the engine is running cold it could run rough because it's too rich.5465 posts · Joined 2012. #4 · Oct 23, 2013. If you are 100% positive that it's not the cap (i bet it is) then you have a large evap leak somewhere. Lots of good info on the web, 99% point to a bad cap. P0457 Jeep EVAP System Loose Fuel Cap OBDII Engine Light Trouble Code | Engine-Codes.com. Like. bigcat.July 6, 2022 by Jason. P1128 is a manufacturer-specific troubled code. In the case of the Jeep Wrangler, it indicates that the engine did not enter "closed-loop" fueling on the bank 1 side. If any other codes appear with P1128, start with them since this code does NOT indicate what has caused the engine not to go into closed-loop operation.Feb 27, 2017 Messages 22,714 ... Produced from 1997-2006, many consider the Jeep Wrangler TJ to be the last true Wrangler. I started Jeep Wrangler TJ Forum to serve as a resource for TJ owners around the world. Here you'll find a treasure trove of knowledge amongst some of the most knowledgable minds in the TJ community.How to Fix P0128. Start with the easiest repair solution, which is low coolant levels. Before you start, turn off your engine and wait until it’s sufficiently cool to open your coolant reservoir. Under normal operation, a coolant system is pressurized. Opening a hot coolant system could cause burns and other injuries if you aren’t careful.OTC 4525 Cable-Type Flexible Hose Clamp Pliershttps://amzn.to/2rpOscXLisle 24680 Spill-Free Funnelhttps://amzn.to/2rocaqSGates 21615 Lower Radiator Hosehttps...I have a 2008 Wrangler X that has been throwing a P0128 (coolant thermostat) code and a P2181 (cooling performance system) code this week.my temperature gauge goes to about the quarter notch (normally sits halfway) and when i turn the heater on, it's not very hot and the temp gauge goes all the way back down to zero, when the jeep then starts blowing colder air out of the vents.This video goes through Troubleshooting for a P0128 engine code. We go through what problems may be associated and how we decided to change the thermostat vs...2017 JKU Sahara Gobi, 275/70/18 Goodyear Duratracs, Mammoth Leveling kit. One day, you will be just a memory for some people. ... Jeep Wrangler Forum. 9M posts 469.9K members Since 2005 A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion ...Diagnose and fix jeep wrangler p0457. Jeep wrangler unlimited 75th anniversary editionTurns out the 2018 jeep wrangler won't get a wacky 368 hp turbo four Fiat chrysler recalls 225,000 jeep wranglers over issue with airbagJeep wrangler 2012 gets pentastar 3.6-litre v6. 2016 jeep wrangler release date,colors,truck,interior,specs . Check DetailsMy jeep mod are 4.5" lift, 35" tires and 4.56 gear. I just recently installed gear to my jeep and after the installation. I got code P0730 and P0731. I used superchip Flashcal before driving my jeep. My jeep has only 1400 miles on it. Everyone's help is greatly appreciated. Mahalo. Like. Sort by Oldest first.Step 3. Remove the air make-up hose from the airbox cover (#1). Loosen the bolts for the band clamps on the flexible air intake tube (#2) and on the airbox cover (#3). Remove airbox hood and and put air filter element (#4) on the side. Next step is to remove the bottom half of the airbox.So I've been battling an issuer on my JKUR now for about a year. It all started when I took my son to school and the Jeep gave me a check engine light and over temp alarm came on. This happened while going up an incline and about 4000 rpm. Once I got home, I ran the scan tool and found a P0128...Jeep Error Code P0128 refers to a diagnostic trouble code that indicates a potential issue with the cooling system. When this code appears, it means that the engine coolant temperature does not reach the expected …704 posts · Joined 2019. #2 · May 28, 2019. The P0688 is for the PCM to monitor if the ASD relay is turning on. The ASD relay is in the TIPM and will turn when the PCM wants the Jeep to run. There are two sides to the relay. The load side which takes power from the TIPM, and when relay closes applies that power to fuel injectors, ignition …4 posts · Joined 2019. #1 · Mar 26, 2020 (Edited) I recently had an engine light come on in my 2013 Wrangler Sport, 2dr. 6 cyl. Code was P0128. I found the code issue. My coolant reservoir was low. No leaks found. I added fluid and cleared the code (disconnected the battery for an hour). No re emergence of the engine light yet, but I haven ...2002 Jeep Wrangler X TJ with I-6 4.0L I had an occasional P0301 code, replaced the Ignition Rail, replaced and changed position of fuel injectors, replaced Crank Shaft Position sensor. Jeep would run great then after a few drives code would return ( it was cleared after each maintenance period, with Code reader and battery disconnect).The engine rarely goes over 185° during normal driving in Florida at 95° outside temperature. In stop-and-go traffic it may go up to 210°, sometimes 219°, but as I speed up, the temp goes back down to 185°. The check-engine light lit up and the code reads P0128. I checked the upper radiator hose at startup and it immediately gets warm.Web if your jeep wrangler is displaying a p0128 code, it means that the engine is not reaching the correct operating temperature. 2015 jku with almost 80k. Web Jk Technical Discussion P0128 4323 Views 14 Replies 6 Participants Last Post By Tonydee , Jan 31, 2020 Jump To Latest T Tonydee Discussion Starter · Jan 24,.Aug 22, 2018 · trailhunter. 1858 posts · Joined 2013. #2 · Aug 22, 2018. From the internet. There are two main*causes*for*P0128: The most common*cause*is an engine coolant thermostat that has stuck open or is opening prematurely. The next*cause*is a problem with the engine coolant temperature sensor or the wiring associated with the sensor.My 2016 Jeep Wrangler JKU has been throwing up the CEL with a P0128 Code off and on during the winter months. The trouble code is generated by the engine coo...The best years of the Jeep Wrangler are: 2019-2021, 2017, 2012-2016, 2010, 2006, and 2003-2004. The years you should absolutely avoid are: 2001-2002, 2005 ... DTC P0128, indicates the thermostat is not regulating engine coolant temperature properly. Our P0128 explainer video dives into the details, but expect to pay around $500 to ...A Jeep Wrangler’s starting issue is usually caused by electrical problems, such as a malfunctioning neutral safety switch or starter. In order to correctly repair a Wrangler with a...July 6, 2022 by Jason. P1128 is a manufacturer-specific troubled code. In the case of the Jeep Wrangler, it indicates that the engine did not enter "closed-loop" fueling on the bank 1 side. If any other codes appear with P1128, start with them since this code does NOT indicate what has caused the engine not to go into closed-loop operation.My engine light came on with a P0128 (temp not reaching running temp within 15 mins). The temp gauge started climbing and bouncing between 3/4 and half. The temp on the dash was reaching 235 and 240 which is very hot for this car. Question: The code usually means a bad coolant sensor or a bad thermostat. But these usually fail OPEN and the code ...After a month of running some great SW Colorado 4wd roads and lots of highway drives the jeep threw another P0128. I should have let it run a couple of minutes before taking off. I don' believe the thermostat stuck. I do have a bit of weird wiring that makes me suspect of someone wanting an easy code clearing.171 posts · Joined 2017. #2 · Mar 15, 2019. I had the P06DD code and ended up replacing the pump. There's an oil pressure sensor switch by the back oil cooler housing towards the firewall. I know people have replaced that and if that doesn't clear than more than likely you'll have to replace the pump.Engine Code P0128 2017 JK. Thread starter rjohn; Start date Jan 6, 2023; Tags engine light on engine running cool p01228 rjohn New Member. Joined Apr 12, 2021 Messages 21 ... Produced from 2007-2018, the Jeep Wrangler JK is a worthy successor to the TJ that came before it. I started Jeep Wrangler JK Forum to serve as a resource for JK owners ...Checked it on ODB and it showed up as "Jeep Wrangler P0128: Coolant Thermostat - Below Temp" . I read a little bit online and changed the thermostat, refilled coolant. I read that if that was the actual issue, the code disappears after a few rides. 1 ride so far and the code is still there. Now the problem I am seeing is, the temperature ...Jeep Cherokee 2015 Tire Pressure Sensor Programming by Launch X431. Check Details. jeep grand cherokee 2011 3.6 v6 take off - YouTube. Check Details. DTC P0128 How to replace the thermostat on a 2.4L Jeep Dodge Chrysler. Check Details. P0128 Jeep Cherokee 2.4L thermostat. Watch how to replace in Part 2. Check Details. Jeep Cherokee P0455 P0456 ...Do the following to fix Chevy code P0128. Check the coolant level: If the level is lower than the minimum, add more coolant and go for a short drive. If the code is still active, you must change the thermostat. Inspect the coolant temperature sensor: The primary coolant temperature sensor is in the cylinder head near the thermostat.Description. The Diagnostic Trouble Code (DTC) sets when the Powertrain Control Module ( PCM) detects an implausible Right Front Wheel Speed signal over the Controller Area Network (CAN) bus from the Anti-Lock Brake (ABS) Module. U140A Jeep Code - Implausible Right Front Wheel Speed Signal Received.For troubleshooting the P0128 code in your Jeep Wrangler, follow the steps as mentioned below: Manage an OBD-II scanner. Plug the scanner in the port, which is placed above the pedals on the left side of your Jeep Wrangler. Put the key to turn on the vehicle and then press the Read button on the scanner. Press on the Erase or Clear …Tools Used:Milwaukee 2767-20 M18 Fuel High Torque 1/2-Inch Impact Wrench https://amzn.to/INNOVA 3612 Milwaukee Electric Tools 2557-20 M12 Fuel 3/8" RATCHETht...FT ELECTRIC AND FUTURE VHCL AND TECH FRE- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies Stocks2015 Jeep Wrangler Code P0128 10 Nov 2023. P0128 jk thermostat Dtc p0128 how to replace the thermostat on a 2.4l jeep dodge chrysler 2015 jeep wrangler review, ratings, specs, prices, and photos. 2015 Jeep Wrangler Review, Ratings, Specs, Prices, and Photos - The Car.Jeep has the dreaded P0128 code..most likely its the Thermostat..time to change it out..and depending on the age and mileage on the Jeep, consider replacing ...May 29, 2018 · 2014 jku sport S dual top, auto 3.73, max tow package Mod's - jwm4x4.com grill insert,25" eyourlife LED bar, daystar switch pod fortin remote start,rugged ridge head liners, rubicon express transmission skid plate, smittybilt 76634 SRC Side Armor447 posts · Joined 2016. #2 · Jan 23, 2017. That code is usually displayed when the engine takes too long to reach operating temperature (thermostat stuck open). So, under certain conditions after you clear the code, depending on outside air temp, driving conditions, it may warm up within the parameters the computer is looking for, despite ...The SEC and FASB are directly and indirectly responsible for regulating public, private and non-profit companies in terms of how they report their finances. The SEC does so through...The thermostat rationality diagnostic runs during a drive cycle that starts with the coolant temperature below 140°F. This diagnostic looks at the how cold the system is at start up, what the inlet air temperature is, and the amount of fuel burned during that drive cycle. The PCM estimates what the coolant temperature should be.The ideal operating temperature for a Jeep Wrangler is between 180 and 200 degrees Fahrenheit for typical weather and 210 degrees Fahrenheit in summer. However, many factors can affect this, including the type of engine oil used, the ambient air temperature, and the amount of traffic on the vehicle. Jeep Wranglers are designed to run at a ...Jeep Wrangler P0137: O2 Sensor Low Voltage (Bank 1 -Sensor 2) P0137 is a fairly common OBDII code that occurs in the Jeep Wrangler, it's a general code. This means that it has the same meaning for any vehicle. This code is supposed to let you know that there is an issue with the wiring or harness going to the sensor, or the sensor itself is bad.Overview on how to replace the thermostat on 2012 - 2017 Jeep Wranglers with 3.6L engine. This had the P0128 code. Hardest part of the job is bleeding the ...Dec 21, 2016 · 34 posts · Joined 2012. #23 · Jan 13, 2017. Heads up that my 2012 JKU threw a P0128 and it was just, Engine, Transmission, and Performance. The Wrangler is motivated by a 3.6-liter V-6 that sends 285 horsepower and, P0128-THERMOSTAT RATIONALITY. For a complete wiring diagram,refer to the Wiring Information . When M, In case the amount of the compensation value is extremely large (The actual mixture ratio, jdinny. 3301 posts · Joined 2015. #4 · Nov 10, 2021. Thermostat , Videos are the new way to show your Jeep Wrangler so please Submit a video or Link of your Jeep wr, Research the 2017 Jeep Wrangler at Cars.com and find specs, pricing, MPG, safety data, photos,, P0128 is an OBD II trouble code indicating that your Jeep, The P0128 OBD II trouble code indicates that your Jeep Grand Che, My 2017 jku is in the shop for this same thing right now., P0128 code: replacing your 2012-2017 jeep jk thermostat M, - Check and repair the radiator fan: If the radiator fan is no, P0128 is an OBD II trouble code indicating that your Jee, The engine rarely goes over 185° during normal driving in, 2017 jeep wrangler sport p0128 diagnostic procedur, To diagnose and fix the P0128 code on a 2015 Jeep Gran, Mileage: 91,494 miles MPG: 16 city / 20 hwy Color: Gray Body S, CODE P0340 P0365 CAMSHAFT POSITION CMP SENSOR CIRCUIT BANK 1 SENSOR 1 .