im haveing a missing under a load problem i have a 92 camaro with 383 tpi "lt1 intake" ive erlaced wires cap rotor plugs and put different injectors in and it still missing i cant really notice it at idle but if i rev it up fast i can hear it or if i go for a drive i can hear and feel it kick in and out if i step on it it might miss them hit on all 8 then miss again fuel pressure good o2 reading good and ideas? any at all? please help thanks

 

Check your coil voltage under load in the higher rpms. I'm betting it's cutting out under a heavy load.

 

Floating intake valves?

 

ive narrowed it down its #1 and #2 not firing the fire sometimes "front 2 cylinders" they cut in and out iand its at idle 2 i started car ran for a bout a min they dripped water on header front 2 jus had a slight hiss while all the other instintly evaperated what would cause front 2 not to fire all the time? i ve check grounds and did compression test its all good there any ideas?

 

u said it happens under a load right? well have u replaced the ignition control module? if not then try it and see ifthat works.

 

the module would have nothing to do with the problem being under load. modules are usually working or not working. id be looking at the coil first

 

actually a module has functions at different rpms, it is possible for the car to run fine at idle and at higher rpms cutout or miss. Although if the module goes out it usually goes out completely not just 1 or multiple function of it.

 

actually it happened to me. i couldnt figure out what was the porblem and after replacing things, when we were at work we decided to change the ingition mondule and it was fine after that.

it ran fine at idle and then when drivin after a bit it would start to act up , miss, backfire kinda, and run totally like crap. it didnt go completely out so i wouldnt say it would go completely out right away.