i have a 93 s10 cpi i did the paper clip trick and got these codes 22 32 34 82. my truck runs alright but it doesnt have the power it used to. i usually dont have the mil on but sometimes when i idle for a while it will come on, or if i put it in reverse and step on the gas it gets really jerky like the fuel surges and then cuts out then surges and cuts out, some times it stalls in reverse. a while ago i took the egr apart and cleaned it up but it didnt help. any ideas or thought would be appriciated.

 

Try cleaning the MAF Sensor.

 

93 doesn't have a MAF; it has a MAP.

First code is always the most important. Fix that, clear codes and run a test drive. In your case, it's TPS voltage was under 0.2 volts for 4 seconds when the ignition was on. Test the TPS and replace if it is under/over spec.

 

i will check the 3 wires with a multimeter tomorrow and get back to you.

 

i adjusted the tps and i have these voltages 0.0 ground 0.44 tps feed closed and 4.8 open 5.12 constant. i still get the same codes 22 32 34 82 and the car still revs and cuts revs and cuts almost to the point of stalling when i give it wide open throttle in reverse gear. but this only happens in reverse.