Ive found a few forums describing the same problem but no solutions. I am not one for playing the parts guessing game. So my 92 rs 305 tbi has a ver sporadic idle 200 to 1800 back and forth untill at op temp. When it is cold and the idle is bouncing around and you try to drive, when i push the peddle 1cm or WOT the car barely moves i just force it it and it accelerates so damn slow i mean like 3k on tach and im barely movin 10mph then all of a sudden it will take off like a bad outta hell. On colder mornings i have to drive for about 20min before it starts running right. This problem started the day after a 200mi rd trip. Since then ive replaced the IAC the o2 sensor the plug wires and plugs. Fuel press checked good so did the Injectors. I cant find any vacuum leaks and ive ran fuel cleaner through it as well. It threw code 44 the day after i replaced o2 sensor but the light was only on for maybe 20 min. So what else should i check and how? Also its been iddling about 2-300 rpm higher than usual in gear and in park. Car has 86,000mi on it all original

 

Check the tps for smooth voltage increase.
Check cts at different temps w/ an ohm meter.
Check the grounds, esp. the ones on the back of the engine.

 

Ok i will deffinatley do that and post what i find after work. Thanks !

 

Definatly sounds like a sensor to me. Wouldnt suprise me if it was a MAF or IAC sensor

 

i didnt get to test those but i have already replaced IAC and the other thing i just thought of was that my spark plugs showed no indication of the car running lean?

 

I tested the tps and adjusted it accordingly. After i was done i was running it and finaly got it to act up in park while revving, the driver side injector didnt spray unless WOT. Should i replace the injector ? Or could another issue cause that?

 

Swap the injectors & see if the problem moves or stays at that side.

 

Update. I changed the plugs and wires, didn fix anything. I bought a gasket kit at orielys for 25 bucks. I also replaced the driver side injector. I only replaced the top gasket the oring and injector on driver side. I also changed that red thing under that tense *** spring on the bottom of the tbi top. The problem has went away for now.

 

Ok after driving my car 20 miles and filling it up, im having to crank it for a long time before it will fire off. Smells like running rich. Im thinking about changing the fuell pump. Any other ideas?

 

I'd replace the CTS ( there cheap) and check the ICM. Sounds like a temp sensor to me?

 

Check the injector spray pattern, should be a fine mist w/ no dripping.

 

ok upon further reading and investigation i seen that the injector i just replaced was dripping. i took apart the top of the tbi again 1. i forgot the metal ring under the top Oring also i ripped the bottom 1 when putting it together yesterday i replaced the orings again and put the metal ring in, used some oil on the orings started right up no drips problem solved for now : ) next time ill look at the pics in the haynes instead of using it to hold down the box full of gaskets lol