sr sensors to ecu

[90sr]

Alright guys, still doin the sr swap, and she jus cranks, we tested jus bout everything, the coils arent getting spark, i tried a search to see wat sensors to the ecu are what and where they are, also OBD1 scanner plug on 90 240 so i can at least pick up a scanner to try n figure out whats the problem, so if anyone knows what sensors i should check and where that scanner plug is located that would help me out for now or a link or something, thanks guys and any other info would be very helpfull, thanks guys.

chris

[mrmephistopheles]

HAHAHAH
sorry.. don't mean to laugh at you.. it's just funny.

1st: 89-90 aren't technically OBD1. There is a plug, but it's for Nissan OBD, and it's only good for a 'Checker box' which you'll find at a dealership. Even if you somehow wired it to the SR, it wouldn't give you proper codes.
2nd: 91-94, which IS OBD1, has a port that you can connect a CONSULT to. So, if you went to a Nissan dealer and hooked up a CONSULT (and had somehow wired the CONSULT into your harness), it still wouldn't tell you diddly shit, as SRs don't have CONSULT capability (for US model/english CONSULTS)

Don't try and figure this out with sensors and codes. More likely than not it's a silly mistake, like the coilpack harness isn't plugged in, or the ignitor chip is fried.

[sleedawg]

Gonna raise this thread up from the dead... First of all, has anyone used a consult port wired into a SR harness? I know according to the post above... it won't work. But, I've heard from some of the drift guys at FormulaD this past weekend that they do plug in a Nissan Consult to troubleshoot. Unfortunately, they all had 91+ cars. I unfortunately have a 89-90 and need the 91+ consult plug. I was told to get the plug from a salvage yard and they can wire it into my harness. Has anyone done this to a 89-90 s13?

[projectRDM]

Yes. Ground, power, TX, RX, and CLK. 5 wires. 3 minutes.

Look at an FSM.