Question about 2002 Toyota Camry

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Replaced the battery in 2002 camry now it won't idle

I replaced the battery and now my 2002 camry won't idle. It idled correctly when first started after replacing the battery, but after idling for about 10 minutes the idle speed dropped below 200. Now, every time I start it, it immediatly drops below 200 and shuts off.

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When you replace battery in 2002 Camry ECM tries to reset to factory levels. The reason it will not idle is that the throttle body is dirty and ECM thinks it should be new!! Clean throttle body with cleaner that is safe for tbs and this will fix your idle problem.

Posted on Jul 06, 2009

  • Jfsaucedo67 Jul 20, 2011

    Great tip, thank you very much

  • Don Bonne
    Don Bonne Nov 23, 2015

    worked like a charm



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Sep 17, 2010 | 2002 Toyota Camry

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I changed the battery and now it will not idle

You need to take the car to a computer specialist. My idle did not idle correctly after replacing the alternator and battery. It was a simple computer reset on the idling.

Jun 17, 2010 | 2002 Toyota Camry

4 Answers

Toyota Camry idles then dies

It is NORMAL for the engine computer to have to "Relearn" how to idle the engine after a battery replacement. This should only be temporary and will go away after a few trips.

If it does not go away, or if the Check Engine light is coming on, it will require diagnosis to determine the cause. Nobody can tell you if the problem is related to your recent work until the cause of the problem is located.

Poor idling and stalling on deceleration can be caused by anything from a bad Idle Speed Control motor (ISC)
to low fuel pressure (Clogged fuel filter, bad fuel pump) to a bad connection in the A/C clutch sensing circuit. (Kicks the idle up when the A/C compressor is running)

Nov 02, 2009 | 2002 Toyota Camry

3 Answers

2002 camry le 4 cyl idles really really low, sputters, and turns off, i have to put it in park and keep reving it and when the light turns green quickly put it in drive and go or it will turn off. also,...

This vehicle is equipped with an electronic throttle control motot that operates the throttle plate. and controls the idle if your throttle plate is carboned up if will decrease air flow into the engine causing a low idle. This is very common if your battery was replaced or disconnected.

Sep 17, 2009 | 2003 Toyota Camry

2 Answers

Changed battery and now Camry will not idle.

Was it idling before you changed the battery? If you were to clean out the throat of the aluminum inlet manifold just behind the throttle body with a parts cleaner product that is safe for plastics (sensors) the car will idle.
The engine features a intake valve cover vent that goes back into the front of the throttle body. After time, the vent tube deposits a lot of oil and gunk in the throttle body assembly and just behind it into the intake manifold.

Aug 25, 2009 | 2002 Toyota Camry

2 Answers

Electrical problem

You cars ecu lost all memory (idle setting, ect) when it lost power. (battery removed). It reverted to its initial programming for idle and your idle air control valve is dirty and sticking so the ecu can't adjust it,. Alot of times they will come back on their own and stick at a ok idle setting but a good throttle body and IAC cleaning is in order.
If you still have trouble after a good cleaning you will need to replace the IAC valve.

May 18, 2009 | 2002 Toyota Camry

1 Answer

Lost idle

get rid of the alarm. its either defective or what have you. either way the alarm is tied into ignitions and some times the function of critical electrical components

Aug 14, 2008 | 2002 Toyota Camry

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