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View Full Version : sr20 swap microtech efi to oem sr harness. running on 2 cyl


vrtgli
03-12-2013, 11:56 PM
I traded my gsxr for this s13 sr20 swap that had microtech efi in it, however it didnt run verry well due to previous owner not knowing how to wire.

Like anyone with a brain i start from scratch and put the oem sr20 wiring harness in, get a 62 ecu, ignitor, new coils, sr20 4 pin 3 wire maf.

Fr sports guide was vauge but did the job. I wired the 5 cluster wires, the ka brown and grey harness and viola! It runs but it is running on 2 cylinders

Has spark 1,2,3, not 4. Its getting fuel on 1,2,3 and not 4.

Front of car
1
2
3
4
Rear of car

Compression is 150 on all 4

The guy i bought the j4 harness off of pinned it to a e5/62 harness infront of me, however im not sure if he did it properly

I have been checking the guide j4 to e5/62 and it is a little confusing
These are the wires i have
8 red green
9 green red
11 green yellow
25 red blue
1 red white
2 red yellow
3 yellow red
And nothing in number 5

I've searched countless nights and im getting tired of this car.

vrtgli
03-12-2013, 11:57 PM
If i unplug the 2nd or 4th cylinder it doesnt change also, fuel or spark