Put a d15b2 into a 89 crx si and turns on but idles super high.like it stays at 4000 rpm.checked to see if there was any leaks but could not find one.what can b the problem?intake manifold bad? Or throttle body?plz help im stumped

 

Neither are going to be ''bad.'' you very very likely have a vacuum leak. Do some research. high idle has been covered in these forums many many times. grab some carb cleaner or throttle body cleaner and spray vacuum lines. Grab a coffee and search the forums or even Google. this is a very easy fix.


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Also, throttle cable needs checked. make sure it's not too tight. it will hold the throttle open if it is. and if it is open just a little then you will idle high. check idle adjusting screw. buy a repair manual, or download one.


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Thanks but ive done sum research and iacv valve might b bad.ima try a good1 on it and hopefully thats the problem.if not will check for leaks a lil better.

 

It is possible that it is stuck in one position, causing the high idle, but unlikely. If that does not fix your issue then it is one of the things I mentioned. But honestly, you are more likely to have a vacuum leak or a throttle issue than a bad EACV. I'm not sure what research you did but good luck either way.

 

maybe a temp sensor?

 

ThAnks guys.the problem was the throttlebody.fixed already