This is topic replaced bypass valve, NOW WHAT?? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 92coupe (Member # 1957) on :
 
ok so i changed the bypass valve and no change in idle, huge difference in performance though. cars builds boost quicker and more of it. but the idle is still high as hell. what to look at now i plan in back probing the TPS if nothing there then i have no clue. i un-plugged the idle air regulator before and that didn't do anything either. so what now????


Justin
 
Posted by 89SC50 (Member # 6248) on :
 
check the throttle position sensor
 
Posted by 92coupe (Member # 1957) on :
 
quote:
Originally posted by 89SC50:
check the throttle position sensor
haha, i was planning on it. but its more like a vacuume leak. because if i pull the bypass valve hose out of the power pipe the idle drops. but it would have to be a BIG vacuume leak, and i already checked the vacuume lines and everything looked good.

Justin
 
Posted by 88DroptopGT (Member # 2535) on :
 
Did you check your TPS voltage? What were your previous problems before replacing this valve?
 
Posted by 50DADDY (Member # 3076) on :
 
You could take the TPS off and throw it away and it wouldnt cause a high idle.Gotta be some kind of vacuum leak.
 
Posted by 92coupe (Member # 1957) on :
 
quote:
Originally posted by 88DroptopGT:
Did you check your TPS voltage? What were your previous problems before replacing this valve?
the same as i explained in this thread.
 
Posted by 92stangLX (Member # 3252) on :
 
quote:
Originally posted by 92coupe:
quote:
Originally posted by 88DroptopGT:
Did you check your TPS voltage? What were your previous problems before replacing this valve?
the same as i explained in this thread.
You may want to state your origional problems again in this thread. Also, you might want ot post your setup.

Sounds like your idle is too high [Confused] Have you tried adjusting the idle screw?
 




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