i have a 1995 toyota camry.

Last night when i got off the fwy my car's RPMs starting bouncing up and down around 200-1000 rpm really low i know.

it sounded like it was having trouble staying on. As soon as i left the street light it was okay....still felt jerky when picking up speeds but it ran fine. I was able to make it home, when i got to my drive way the RPMs were bouncing around.

What can it be?

do you think its the Camry Idle Air Control Valve but it happened after my car was warm ( i had been on the fwy for like 40 minutes)

I did realize my cars oil was a bit low, i added some oil when i got home, but i just turned it on a few minutes ago and its still doing the same thing. I had a car a while back that had no oil and the engine seized up completely, i dont think this is an oil issue since it has to do with the RPMs? Any suggestions before i take it to my mechanic

I did recently have my o2 sensor replaced. Oh and not too long ago a mechanic told me my egr was clogged or something of that matter, but then another mechanic told me its not. Could this be a result from a clogged egr?

 

EGR system should be off at engine idle.

The IAC valve would be the place to start. Engine warm or cold it controls idle RPM.

Do an internet search on cleaning the IAC for your engine model.

 

I sprayed my IAC with carb cleaner and cleaned it with a rag, it didnt seem to help. Thank you though.

I dropped it off at my mechanics and got a call from him sometime later saying that it was a SENSOR (probably a fried sensor) He said he checked the computer said there was a bad sensor so sure enough when he checked it, it was bad. i'm going to pick up my car on MONDAY since the shop is closed, i'll post whatever sensor it is and if there were other problems fixed but from what i know it was a bad sensor.

 

ECT sensor?