420a stalls

[tdizzy]

I have a 98 eclipse rs automatic and once in a while (mostly when warm) I will start it and it will go to .200 rpms and stall. Also I can give it gas to keep it alive and even then it will sometimes bounce around from .200 then it will stay at .800. This problem is very confusing and I don't know where to start, so any help will be greatly appreciated. Also I forgot to mention the CEL codes are o2 sensor bank 1, transmission control unit, and an overdrive solenoid.

 

[95VENG]

Does it throw any other codes?

 

[tdizzy]

Nope just the three I mentioned

 

[Gruff511]

Replace the front O2 sensor and see if it solves your problem. You need to rule out some of the codes first. Also clean your MAP sensor and the IAC motor on the intake. If you have A LOT of build up in the intake manifold you should take off the throttle body and do a thorough cleaning of the throttle body especially the passage ways where the idle air passes through.