So, i've had the car warm up before to bleed to coolant, then i got it driving last week, and was fine for about 10 minutes and then it started misfiring. Went through everything, all checked out, but i wasn't getting spark, but had power to the distributor, replaced igitor and ignition, and now i have spark. However, it just rolls over, and sputters every so often... i'm really confused. It is possible its just that far out of time it won't fire? i have fuel also, i'm confused. On the air in the coolant, there is an absorbent amount... i don't think its a crack in the block because there is no oil/coolant contamination, but it is possible that the head gasket didn't seal and its just dumping coolant in the combustion chamber and maybe thats causing the no start??.. my nightmare.. Any help would be greatly appreciated, i'm lost right now.

92 civic ex 1.6

off topic, but as i was installing the new exhaust i noticed there wasn't a second O2 sensor, but there hasn't ever been a check light on? where does that sensor plug into?\

--edit--
SOLVED, i just made an addendum to post some information.

 

what kind of car do you have? year? motor swap specs? anything?

Even if there's coolant mixing with your oil, it'll still start regardless... that is unless there's absolutely NO oil and its all coolant.
It's possible it might be out of time. Any upgrades you can think of that'll cause timing to go out of whack?
Possible you got water or something mixed in with your gas?

Just some things to think about....

 

i stated make model ect, but again, 1992 civic ex. As it turns out, EX models come with 1.6 Vtecs, i originally thought it had a mini-me swap done, but i'm positive its original. Anyways, no, everything is OE. Seems unlikely that there is water in the fuel, as i'm not sure how it would get in there, vehicle is in a garage. Unless changing the coil and ignitor changes timing, which i guess i can see, then there isn't any other reason timing should be off.. The oil looks fine, its still clean, only has like 15 miles on it since oil change. I dunno... i'm super lost right now, and i should see ether oil in the coolant or coolant in the oil if there is a crack somewhere. The coolant system is SUPER pressurized, unless i'm thinking incorrectly i should be able to start and idle the car with the radiator cap off? but in my case, coolant shoots everywhere, and when i take the cap off, even after just cranking it over, there is a crap ton of pressure in the coolant system.

----edit----
so.. after thinking about it, i'm almost positive my head gasket didn't seal, possibly didn't set right to begin with, and i haven't done a compression test, but for the short period that i was cranking it over and for the amount of coolant i was loosing, it would make sense. If i don't have compression, than the car obviously won't start...

---finish----
new head gasket, started right up

 

just wanted to post ignition and igniter test in case some one come across this thread, because i just replaced both without testing them, and i only ended up being the igniter.