Well I've searched and read the stickies but still have an EGR related question

Well as you can tell i am a new member here. To be quite honest, I'm a Mazda man (2002 Protege5) but I also own a 1999 Camry 2.2L, which has been a fantastic car. I've owned it about 9 years and its been dead reliable until now.



So, a little backstory. I have been having a stalling problem with it. Well, actually my wife has. She says it will stall when coming to a stop or going from one. The CE light never came on either so no codes to go off of. Now before I became a member here I read thread on others with the same problem and have since done these things:



-Replaced both O2 sensors

-Replaced the coolant temp sensor

-Checked the IAC sensor, which tested fine

-Replaced the spark plugs

-Replaced the battery



I also took it to a mechanic who looked at it and couldnt find anything wrong. Now I'm trying to eliminate the EGR being the problem. I found a thread about how to test and bypass it, but I think it was on a 6, not a 4. So I took off the vacuum hose to the EGR and put a plug in it, I also put a cap on the port it was plugged into. I noticed it seemed to idle at a stop in drive and little smoother and it idles a little higher in park than before. The CE light came on too of course. So my question is, if it does not stall on her in this condition, does it mean I need to replace the EGR? I read the sticky on how to clean it but I know her, she would prefer me to just buy a new one. Thanks for your advise and for a very helpful site.



Mike

Reply 1 : Well I've searched and read the stickies but still have an EGR related question

the valve may be bad (stuck), if it is then its dumping too much spent exhuast back into the engine, which can cause it to stall.

Reply 2 : Well I've searched and read the stickies but still have an EGR related question

Well I'm hoping thats what it is. Its getting old as this has been going on for a couple months. Whats really strange is that it never stalls on me. I drove it for a month to see if there were any other signs before or after it stalled but it never happened. Then I give it to my wife and it stalles the first day.

Reply 3 : Well I've searched and read the stickies but still have an EGR related question

perhaps she is stopping quicker then you? that was the issue i had. if i stopped too quick the revs couldnt recover fast enough to even out the AFR...and thus stall.

Reply 4 : Well I've searched and read the stickies but still have an EGR related question

Quote:

Originally Posted by bigbird perhaps she is stopping quicker then you? that was the issue i had. if i stopped too quick the revs couldnt recover fast enough to even out the AFR...and thus stall.

Very very possible. She drives like......well, a girl. I've been meaning to ride with her o see what's going on because it literally only stalls with her. It's done it about 8 times and I would drive it for a week to a month after Tue stall and it would never do it for me. Then the day I give it back to her it stalls. What could case an issue like that? I would think no matter how fast or slow you stop the engine shouldn't die.

Reply 5 : Well I've searched and read the stickies but still have an EGR related question

have you tried just cleaning the IAC valve? the sensor might check fine, but the valve could be gunky and sticking. hey, this seems to have the same symptoms as you describe and you can do a quick cleaning very easily to see if it helps.