My prelude has 240 compression across the board. Spark/Air/Fuel. What could cause this problem? The car is able to be driven but once it reaches operating temperature it will not idle. Since I am running an H22A. I had to replaced the H22A head with a H22A4 head, and I am using a H22A4 head gasket. Could it be the H22A4 head gasket? The H22A head has been rebuilt and I have the correct gasket. Do you think swapping out the H22A4 head for the original H22A will fix the problem?

 

Did you

set ignition timing, adjust the valves

 

did you bleed it properly? are you correct on the timing belt?

 

No, the head was just thrown on! How do I do this? Timing is correct when it is check with the timing light!

 

I am not sure if it was bleed correctly. Do you mean the coolant? The timing is correct!

 

Bump!

 

The same thing happened to me! Turns out #16 and #24 vacuum hoses were crossed at the left shock tower. This caused the EGR valve to stay open because it coudnt bleed off vacuum. Check it out.

 

I will try that asap! Thanks!

 

It was the EGR. It was stuck open!

 

:thumbsup:

 

I can actually finish my project because the shop worked with me on the labor! I have to edit all my for sale item!