#1 and #2 cylinders just quit running today
 

i recently boosted my d15b in my 93 civic ex. i am using dsm 450's resitor box and uberdata with a p28 ecu. i ran the car for quite a while with the 450's and uberdata. i took off today for a test driver after making some changes and before i even got into boost the car just started missing. i checked for spark and it is really strong on all 4 cylinders. while it was running i listened to each injector with a stethascope(sp?) and they were all making the same clicking sound. so after all of that i figured the headgasket blew between those two cylinders. i pulled the head and there is no sign of a problem with the valves, head, headgasket, or the deck of the block. the cylinder walls look really good also. like a 40k mile engine just like the guy said. has anyone else had a low milage engine loose two cylinders before with no sign of a problem. i have to get this car going again cause other than my motorcycle its all i have. it rains too much in FL to only ride a bike. tomorrow i plan to sort of a compression check with the head off. also, my car has only seen 5psi like 5 times. the charge pipes keep slipping off so its not like i boosted it and ran it hard.

Re: #1 and #2 cylinders just quit running today
 

Do a compression test and a leak down then go from there.How old the plugs look?You should double up the clamps or get some tbolts.

Re: #1 and #2 cylinders just quit running today
 

ok, its fixed. it turns out the 2 welding balls broke free from my charge pipe and each got stuck in an intake valve. i got them out and lapped the valves. it runs great now

Re: #1 and #2 cylinders just quit running today
 

Nice welding job! :o

Re: #1 and #2 cylinders just quit running today
 

im using a flux cored mig welder. it sucks. one of these days i need to break down and buy a bottle of argon for it. i just dont use it enough for it to be worth it.