hey i just got a 1989 GTU for 1500 with 140,000 miles on it. the car drives fine but when it idles it bounces a lot, especially right when i start it. once it warms up it gets a little more steady..but i dont know whats wrong with it. any help would be appreciated...im new to the forum and to rx7s. thanks

 

if it revs up to 3000 and then drops down slowy ,, thats a typical rx7. accelerated warm up process.. if its all over the place. then it could be a leaky injector. or something along those lines

 

ok thanks a lot.....what else could it be? i wanna just replace or fix everything that could cause this

 

Word on the street is that Grounding can cause stuff like that, check all the engine grounds and such, or maybe even add your own to chassis. See if that helps, I know more grounding never hurts, anyway

 

thanks...anymore help would be greatly appreciated

 

90% of the time, idle problems are caused by vacuum leaks and/or a bad or misadjusted TPS.

 

how can i find out what the problem is?

 

nevermind..i looked in the faq.

but now how would i go about figuring out which one of these problems im dealing with?

 

^^^^
Aaron Cake is one of those you listen to here If he says something, There's a good place to start

 

the whole engine compression thing is kinda scaring me tho..im hoping its not that.

 

fix the grounds and adjust tps first, they're easy. fixing grounds did lots for my car.

 

how do u fix the grounds? and where is the TPS?

 

take some sand paper ,, take off one ground. scuff the mounting surface and the terminal.. bolt the ground back on and move onto the next one .. thet reminds me thats something i should do to

 

wow..i just searched grounding and the results that ppl got impressed me...im gonna do that tomorrow.

 

and for the tps search "tps adjustment" and use aaroncake's directions.