help 6 grand in the hole !! surging

[angelofchaos]

i have a 90 acura integra gs 5 speed. got it in feb for a dealer. noticed it was surging he said its fine dont worry about it and un plugged it....6 grand later ..... we r now finally fixing the iacv which he unplugged . any way my bf got one from the junk yard it still surges up and down.cleaned it and everything . little did i know that tpart is expensive so is there anything to do before i go and spend the money and it might not be it with my luck?im stuck .btw the dealer half assed EVERYTHING in the car the motor is a 92 dont know if that matters

 

[lokibear]

http://www.clubintegra.com/board/showthread.php?t=72042

Or also your fitv might be dirty

http://www.clubintegra.com/board/showthread.php?t=71504


Here is a start. Please try the search bar there are a lot of post's about this. Good luck!

 

[Samurai_Blue]

If its during a cold start its the FITV which is under the throttle body. If its not that do a valve adjustment (but only after you do other stuff like plugs etc) Then if those dont work you may have a warped head.

 

[angelofchaos]

it only surges when the iacv is pluged in. and mostly when you pump the breaks? vaccum leak?

 

[lokibear]

I believe your car is supposed to kick its rpms up at idle when you unplug the iacv. And if its only surging while plugged in then......... It's probably that.

 

[angelofchaos]

ok so how do i check my motor year i have the vin. some one said some thing about the ecu to me today to see if it matches how the heck do i do that i cant figure it out

 

[Merlins Beard]

check to see if the vin on the engine matches the vin on the body of the car. from my experiences with my 97, a vacuum leak will cause an idle surge, and pumping the brakes will raise the idle but not really cause a surge.