Alright im gunna try to go into detail so its prolly gunna be long, alright I have a 1991 honda civic with an 89' DOHC ZC ls Engine. My problem is that when I start up the car the engine shakes really bad, not the mounts cuz I checked that, but its the idle and its really low and sounds like its about to stall out, i messed with that screw to change the idle time and same thing it just sucks in more air. Ok it runs though just sounds like its gunna stall any second, i tried driving it around and when I press the gas I can hear the sucking sound but like a 1/2 second later the RPM needle moves and it revs. Also when I drove it around I got into 3rd gear and it wouldnt really go any faster than 50 when i was flooring it. Also I have a CRX hf ECU but before these little problems it topped out at 110, but thats a different problem, plus i smell gas really really bad when i shut off the car, and when i shut it off it sounds like air leaking somware I just dont know ware. And when i try to drive when im in first gear i press the gas and the needle slowly goes up, now i changed my spark wires and fuel filter. Also I checked the compression and im forgot the exact numbers but three were 7.xx's and one was a 5.xx, so if anyone has had this happen or could gimme suggestions please help me.

 

Hey my cousin had the same problem with his crx and he got a fuel pressure regurlator and the rpms went up alot faster but i'm not sayin that is the problem with your car, good luck though

 

I need more help, could it be the timing?