RedBravo

Can anyone please help. My 85 Trans Am 305 TPI has been getting intermittant check engine lights. I had it tested and this is what came up.

Code 22: Throttle position sensor too low.
Code 32: EGR system problem. I have a bad solenoid so the EGR has been positioned to always be open.
Code 33: MAF sensor or circuit too high. "Replaced MAF this spring"
Code 43: ESC module or sensor circuit problem.

Can anyone please help? Thanks.

OldCelica

I would start by testing each of these components individually. Just to be sure.

BTW: with your EGR open as it is how does the car idle. I always thought that it wouldn't at all if the EGR were open.

I would also check voltage to each of these sensors. Most of the sensors should have 5V going to them with the key on. I know for sure that the TPS has this voltage. Can't say for sure on the others.

RedBravo

The idle runs good some days, and it runs rough others. I will check these things and see what happens. Hopefully I can get more insight. Thanks for the reply.