Ok, several months back my friend did a h22a swap into his lude. Right off the bat there were all kinds of problems. some of the stuff is fixed, but it still does some other wierd things.

1. The car hesitates like crazy, no vacuum leaks though.

2. We put the Si fuel pump in and ever since then the car has like half the power it used to.. Its slow..

3. And it has an idle problem, but we know what that is now...

Any ideas or help would be appreciated.. Thx.

 

was the idle problem an erratic idle? does it hesitate at the same rpms all the time or just all over hesitation? Also, did you check to make sure that the Si pump is adequate for the h22 motor? Because it may not be getting enough fuel thats why it hesitates or has a loss of power.... Also, is the hesitation feel like a complete stop of the motor when raising the rpms or just a little annoying? I used to have a 93 integra that was hesitating where it would feel like it would completely stop when I was accelerating sometimes, and it ended up being loose wires going to the ignition module..... dont know if any of that helped but let me know.....

 

Ya try a diff fuel pump