spark problem 1,2 firing but 3,4 arent

[jdmsilvias13]

I just got done with a swap and started her up, and when we did it had an idle problem, so first thing we did was check for spark......1,2 were firing but 3,4 were not

-first I swaped coils and still nothing-second swaped computers still nothing-third swaped ignitors still nothing-forth pulled the cap off the CAS to see if there was hidden damage and it looked good.-next swaped coil harness and checked grounds and still nothing

what should I check next? I am stumped

[jdmsilvias13]

I just checked for continuity between the coil plug "harness side" and with the ignitor plug (4 wire) and everything checks out......

[jdmsilvias13]

just checked for continuity between ignitor"5wire plug" and the Ecu and everything is ok.............

come on someone must have something for me

[yellow_jacket]

did you check for power?

Did you check for continiuty on all for wires going back to the ecu?

[jdmsilvias13]

the only thing I just noticed was there is an empty plug that is under the fuse/relay box on the passanger side engine bay. what is that for?

[phroze2001]

When you re-wired the plug near the headlight did you wire the two wires together on the engine side like you are supposed to cause the 240 wiring only has power for one coil where on the sr side they split it off into two power wires for the coil packs??? I had the same problem but mine turned out to be a bad ignitor chip... Check your connections and make sure your ecu plug is in there nice and snug.

[jdmsilvias13]

do you by any chance know what wires those are? colors

I didnt do the harness I sent it away but you never know if they may have Forgottern

[jdmsilvias13]

I checked those wires they were done right,

I tested the ECP,Ignitor,Coils on someone elses car and they all work fine

Does anyone know the wire circuit for the igniton system for the SR?signal,power,etc.