Sr20det no spark, im in the dark.. sr20 brains needed

[Chrischeezer]

ok boys i need a little help here... LONG CRAZY problems...
s13 with a sr20det redtop

first off, car ran wonderful for a year.
i washed it one day and since then everything has been messed up,
it started shutting off and running on 2 cyl and full rich 10.0 a/f, 1 and 4 were not firing at all dumping so much fuel..


so i relized their was no spark,i first thought it was my CAS so i started messing with that.. trying to clean it and stuff, and then i swaped ignitor chips a days later.. it started and ran.. good, but as it was warming up it would run richer and richer... and slowly make its way to full rich...10.0 fouling plugs out like crazy. then i thought maybe its the harness, so i started pullen wires and tracing wires all ova the place, checking for some brakage. messin around with sensors
since then now number 2 cyl has no spark, and im not sure if its still running crazy rich, or if its no.2 dumping but fuel goes everywhere when i start it up.
-swapped ECU's
-swapped out MAF's
-swapped out O2 sensors
-coilpacks
-tryed plugs/ checked gap
-changed temp sensor.

nothing controls spark, but the CAS, ign. chip and ECU right?
whats the in/out setting for a stock MAF on safcII?
its been a week.. i still can figure out why its running so crappy

i really need some help... :cry:

any input at all would be great.

[Chrischeezer]

ok i just changed the CAS.. set the timing perfect everything looked good...

the car starts but now 2 and 3 are dead.. filled with Fuel everything is running pig rich...

the motor actually kicked back 3 times during start-up becasue of too much fuel... worst sound ever...

this is really getting me sick

[johngriff]

Ok, well, time to work SMARTER, not Harder.

First, if you are going to be cranking to confirm spark, please, Pull the Fuel pump fuse, stop flooding the engine. You are going to hydrolock, or bend the valves.

2nd. BUY A MULTIMETER. Test the ign leads while cranking, from the coil packs back.

If it is regularly firing on even 1 of the cylinders, then the cas is operating normally.

This sounds like your harness went shitty, so time to use some deductive reasoning, and track it back.

[GSXRJJordan]

yup, sounds like you're having harness problems (as you've switched everything else). You'll want to check the power to each coilpack, the +12V going to the harness, and the grounding strap coming off behind the 4th coilpack. PM me if you need exact pin-to-pin description for the ECUs part (as long as you've got a multimeter handy), I've got a great diagram I made and have been meaning to post up.

[riptor]

sent u a pm!

[riptor]

any luck with your problem bro? im having a similar problem. cept mine is getting NO spark to ANY cylinder. metered out the coil pack harness its lookin good. tried to crank the car with number 1 pack out and spark plug in pack. had no spark...