Question about 2000 GMC Jimmy

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OBD II P102. do i need to do a drive cycle to correct the problem after replacing parts and reseting code.on a 2000 GMC Jimmy.and how??

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  • GMC Master
  • 14,036 Answers

YOU NEED CODE SCANNER TO ERASE CODE.TAKE VECHICLE TO AUTO ZONE THEY WILL ERASE CODE FREE.

Posted on Mar 24, 2011

  • 3 more comments 
  • crash1up81
    crash1up81 Mar 25, 2011

    thanx for YELLING!!!!! I have a code reader... just trying to completely relearn the vehicles computer... IM wondering if GMC in particular has a "drive cycle) that i need to perform!!

  • Jonah Oneal Mar 25, 2011

    ONCE YOU REPLACE MASS AIR FLOW SENSOR.YOU FIRST ERASE CODE.THEN LET CAR IDLE UNTIL ENGINE GET OPERATING TEMPERATURE. PCM WILL RELEARN THE NEW PART. THEN I LIGHTLY ACCELERATE ENGINE BY HAND IF YOU GET A HESITATION.I KEEP ACCELERATING BY HAND.WHEN ENGINE STOP HESITATION YOU CAN DRIVE IT.PCM HAS RELEARN THE NEW PART.

  • crash1up81
    crash1up81 Mar 26, 2011

    Thanx.. thats more what im looking for!! Once the vehicle is warmed up i have no problem running the accelerator.. low idle - wide open... can do that for as long as i want, but the stumbling starts back up after i reverse or drive forwards, put tranny back into park and the "hesitations" are immediately back... im wondering wtf????? and what rto check for??

  • Jonah Oneal Mar 27, 2011

    car stumbling on acceleration could be clogged fuel filter, spark plugs fouled ,clean fuel injectors .you could have intake manifold vacuum leak.check fuel pressure.should be 41 - 47 psi or 58 - 64 psi.

  • crash1up81
    crash1up81 Nov 16, 2012

    When in doubt change the fuel pump... problem solved

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Car sputtering badly. Codes P303 n P102 show on diagnostics and have replaced both parts associated with these codes,PLUS, new fuel filter, engine still sputtering badly.


Hi,

I hope I can help with this. This could mean the engine spark plugs or plug is the issue. Also check the exhaust pipe. White smoke indicates a coolant issue. Check your coolant reservoir. Black smoke indicates a Fuel issue. Blue is an oil issue. Also, speaking of your spark plugs there very well could be a misfire.

the code P303 could be cylinder 3 misfire
P102 the mass air flow sensor which is on the air filter cover. It's an electrical part and is sensor. Please check these and let me know.

Jul 28, 2016 | Cars & Trucks

1 Answer

I HAVE FAILED EMMISIONS PASSED ALL BUT READINESS RESULTS. CODE 99999..OBD


Read the article in the link below and it will explain how the readiness monitor tests work.

http://ricksfreeautorepairadvice.com/readiness-monitors-and-drive-cycles/

Mar 09, 2015 | 2000 GMC Jimmy

1 Answer

WE HAVE REPLACED EVERYTHING ON A 2000 GMC JIMMY PUT A NEW COMPUTER IN AND NOW IT WILL NOT START.IT WOULD START BEFORE


did you put the unit in with the battery still connected? you my need to disconnect it, for a few seconds, then reconnect it, cycle the key on and off 3 to 4 times, (not start ,just on) , then try to start it, if that doesn't help you my need to get an obd on it and "clear all" then try again.

Apr 05, 2013 | 2000 GMC Jimmy

1 Answer

87 gmc jimmy 5.7 efi intermitent miss.


You need to run a fault code test, read at the link below how to do this
http://www.obd-codes.com/faq/read-gm-2-digit-obd-codes-free.php

Apr 05, 2013 | 1987 GMC Jimmy

1 Answer

Check engine light, code p1441


This is the OBD II code to indicate EVAP system flow during non-purge. Sometimes this is caused by not completely screwing in the fuel cap.
Reset the code (or have it reset), and be sure to always fully tighten the fuel cap. If the problem persists it is caused by a leak in the fuel tank or line.
Check the following:
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  • Leak in fuel tank/fuel lines

Mar 04, 2011 | 2000 GMC Jimmy

1 Answer

2000 gmc jimmy code po171 how to fix it


if i remember correctly that code is running lean on bank one (drivers side) of engine. normally the cause of this code is that the left side o2 sensor in front of the cat. converter is not reading correctly. to fix the problem i would first stop at a parts sore where they do free system scans to erify that is is that particular sensor. if that is the case then the solution is to replace it with a new one. hope this is of help, thanks

Oct 20, 2010 | 2000 GMC Jimmy

3 Answers

Can't get my 96 chev s-10 to pass inspection due to Not ready codes. I recently change the battery and have driven the veh about 200 miles. Autozone checked and said it was all good but the state...


Here is the drive cycle procedure for that vehicle, and let me know if you require any further assistance.


Running an OBD-II Drive Cycle

The purpose of the OBD-II drive cycle is to run all of the onboard diagnostics. The drive cycle should be perfomed when any trouble codes are erased from the PCM or if the battery was dis-connected. Performing the drive cycle will reset the monitors so that any further trouble codes can be detected.

The OBD-II system drive cycle begins with a cold start with the coolant temperature below 120 degrees F. and the coolant and the air temperature sensors within 10 degrees of each other. (The ignition key must not be "on" or in the "Run" position until the cold start or the heated O2 sensor diagnostic might not start)

1. As soon as the vehicle starts up, idle the engine in drive for two and a half minutes with the AC and the rear defrost on if equipped with a rear window defroster. The OBD-II will check the O2 sensor circuits, the air pump, and the EVAP purge.

2. After the two and a half minutes turn off the AC and the rear window defrost, and then accelerate to 55 mph at half throttle. OBD-II checks for any ignition mis-fires, fuel trim, and canister purge.

3. Hold steady at 55 mph for three minutes. OBD-II monitors the EGR system, the air pump, the O2 sensors and the canister purge.

4. After the three minutes decelerate down to 20 mph without using the brakes or the clutch. OBD-II checks the EGR and the purge functions.

5. Accelerate back up to 55 mph at half throttle. OBD-II checks for mis-fires, fuel trim, and purge functions again.

6. Hold steady at 55 mph for five minutes. OBD-II will monitor catalytic converter efficiency, for any mis-fires, EGR function, fuel trim, O2 sensor operation, and purge functions.

7. Decelerate to a stiop without using the brakes or the clutch. OBD-II makes a final check of the EGR system and the canister purge functions.

Sep 12, 2010 | 1996 Chevrolet S-10 Pickup

1 Answer

4x4 service light on


You will need to get the code read by a OBD II scanner to find the Trouble Code to repair the vehicle correctly.

May 27, 2010 | 2001 GMC Jimmy

1 Answer

How to get engine codes from a 1996 jimmy


In order to read engines codes from a GM car you will need a OBD II Code Reader.
You can pick them up at your local automotive oriented store. If you live in Canada, Canadian Tire, Walmart (In the states too), etc..

Dec 23, 2009 | 1996 GMC Jimmy

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