Stumble on acceleration
10-11-2004, 06:00 PM
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Stumble on acceleration
Hi all,
Workin' on a friend's 2000 RAV4 today. She had the battery changed a few days ago and the car started running crummy. Check engine light came on. I pulled a code 106 (manifold absolute pressure) and after a little looking, I found the vacuum hose to the MAP sensor had been knocked off by the guys when they installed the new battery. I replaced the hose, but the car still runs crummy. Is there a reset procedure for the PCM? Can anyone help?
Am I in the right forum for this info?
Thanks for any help.
Workin' on a friend's 2000 RAV4 today. She had the battery changed a few days ago and the car started running crummy. Check engine light came on. I pulled a code 106 (manifold absolute pressure) and after a little looking, I found the vacuum hose to the MAP sensor had been knocked off by the guys when they installed the new battery. I replaced the hose, but the car still runs crummy. Is there a reset procedure for the PCM? Can anyone help?
Am I in the right forum for this info?
Thanks for any help.
10-11-2004, 06:15 PM
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Originally Posted by AgRunner06
It's OBDII so you will need a code reader to reset the codes.
Will the PCM reset if I just disconnect the - battery terminal for a couple of minutes?
10-12-2004, 09:04 AM
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update
OK,
I just drove the car, and gradually the PCM realized is was getting good signals from the MAP sensor. It was necessary to open the throttle wider than normal to allow this to occur. The driveability quickly improved and the stumbling on acceleration gradually disappeared. After three starts running normally, the PCM reset the check engine code for the PCM. All is now well.
Hope this helps others on the forum.
I just drove the car, and gradually the PCM realized is was getting good signals from the MAP sensor. It was necessary to open the throttle wider than normal to allow this to occur. The driveability quickly improved and the stumbling on acceleration gradually disappeared. After three starts running normally, the PCM reset the check engine code for the PCM. All is now well.
Hope this helps others on the forum.
10-12-2004, 09:13 AM
#6
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Originally Posted by whininwillie
OK,
I just drove the car, and gradually the PCM realized is was getting good signals from the MAP sensor. It was necessary to open the throttle wider than normal to allow this to occur. The driveability quickly improved and the stumbling on acceleration gradually disappeared. After three starts running normally, the PCM reset the check engine code for the PCM. All is now well.
Hope this helps others on the forum.
I just drove the car, and gradually the PCM realized is was getting good signals from the MAP sensor. It was necessary to open the throttle wider than normal to allow this to occur. The driveability quickly improved and the stumbling on acceleration gradually disappeared. After three starts running normally, the PCM reset the check engine code for the PCM. All is now well.
Hope this helps others on the forum.
In the future, either disconnecting the negative terminal or pulling the ECM fuse will reset the computer and clear the OBD codes.
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