92 Camry I4 idle problems HELP!

[chase_state]

I have a 92 camry that has a problem with the engine or fuel system.
The problem is when the car is warm and you put the car in Drive the RPM's start jumping around in between 700 and 900 RPM's. The engine shakes badly too.Then once you start to go in drive the car kinda struggles to get going, kinda like its missing. It does this until around 3K RPM then its fine. i'm thinking maybe bad gas, I recently put gas in it, and this is when it started; or maybe fuel filter, and I also heard it might be the EGR Valve. But Really I have no idea?? Help please!!

[xfeejayx]

Welcome to AF!
What gas station did you fill up at? If it was a Citgo, follow this procedure:

Though Citgo does have an insurance policy that covers any damage caused to cars by the gas they sold you...if you can prove it was their fault

Does it have the problem when it is cold? If not, it might be a sensor, possibly o2. This sensor does not 'kick in' till the car is warmed up, so it won't cause problems till it gets hot.

Did you check for any codes?
EGR would most likely throw a code, though it is not absolutely necessary that it will. To check the codes you would probably have to buy a service manual, since Autozoen won't check anything that old (i don't think). Or check the top of this forum, a manual for your car is stickied there.

Take the obvious diagnosis steps and check for spark, it's easy enough on that engine.

If none of the above, next step would be fuel pressure, though if it okay after 3k rpm, that probably isn't it.

My money is on the sensor. Check the manual to see how to test it. It is probably in there. If not, go to autozone, read the page you need out of a haynes (or actually buy the manual since it is the Bible for your car).

[chase_state]

I think it was a Citgo where I filled up. I'm kinda guessing fuel is the problem but I keep checking.

[AccordCodger]

Good luck. Citgo is owned by the Venezuelan government. And you KNOW what President Hugo Chavez thinks of the USA!

[DFBonnett]

Based upon your description and a similar problem with our '93 V6 that was solved by cleaning the IAC valve, I'm going to guess the IAC valve is gummed up.
FWIW
YMMV

[xfeejayx]

Originally Posted by chase_state

I think it was a Citgo where I filled up. I'm kinda guessing fuel is the problem but I keep checking.

Did you run a different gas through it? Did it fix the problem? What happened?