Well since Ive got my 91 rs 305 TBI I had to replace the cat and flex plate. It ran good for a few hundred miles but then while going down the highway at 65 It started dropping in rpm and acting like it wasnt getting gas so I replaced the fuel pump, fuel filter, air filter, spark plugs and wires. But it continued to do the same thing so I replaced the throttle body possition sensor, throttle body rebuild, fuel injectors, carcoal canister(fuel vapor canister thingy). but the same issues so I replaced the distributor and got a high proformance cap/ rotor, a new icm, new streetfire coil, new plugs.(I have re timed the car back to 0 degrees after anything Ive done, plus I put a new cat back on) but I still get issues, Im not getting a ses light until right before second gear when the car hesitates, when I hit big bumps, or when Im cruising down the highway. does anyone have any ideas of what its doing or how to fix it? The only thing I can think is egr or ecm but the egr seems like it moves fine. so any ideas or questions would be helpful thanks in advance...

 

 

have you pulled the codes to see if anything showing?

https://www.thirdgen.org/forums/tech...s-dumbies.html

 

yes ive ran the codes and it blinks only 12.

 

could this be a loose ecm power connection, egr, or just a bad ecm? Any suggestions would be greatly appreciated... I love thirdgens but they never seem to work.

 

I got about 30seconds in an I couldn't handle all of those squeeks and rattles.

 

haha yeah someone made this hard top into a t top but didnt do a very good job. i have to redo itwhen i can get it working right.