94 1.5 idle problems

[diymirage]

i have a 1994 mirage 1.5 liter with 7000 miles on it (blew the first engine) when i relaced the engine i used some old parts and some new ,maybe this has something to do with the problem .
when the car is running on idle it will run from 800 to 1500 and return in about 4 seconds and it wil keep doing that .
i've added a bigger trothle body and bigger injectors but that didnt change anything .it could be that the TPS is of but im not sure what else ...

[afterhrsplayer]

If you got the throttle body from an Eclipse, it's the TPS. Sometimes they can just be cleaned and will work just fine.

[diymirage]

i swapped several TPS' and none of em really fix it :S

[afterhrsplayer]

Originally Posted by diymirage

i swapped several TPS' and none of em really fix it :S

Damn, that's odd. I know mine was like that after I switched my throttle body. I changed the TPS and it was fine. But I also changed the IAC. Have you checked that?

[diymirage]

im not sure what that part is but here is what i swapped :
the tps , the whole bottom half of the trothle body (wich should control the idle) and a little sensor in the intake manifold , it kinda looks like a temp.sensor but im not sure what it is