MIDNFauciUSN

iTrader: (8)

So I have a jumble of parts thrown together into what makes my FC up...

88 Vert (see avatar)
91.5 Jspec turbo - all N370 components, and up to this point, have worked wonderfully well.

This evening, I went to take the car out for a spin, and after about 100 feet, hit the gas a little harder, and it pretty much died. LOL... it definitely limped all the way home. The car still idles normally though, if you can call 1400 rpm normal.

After some reading here, sounds like its in limp mode... i also lost my AFR (narrowband) reading as well... coincidence? I figure the OMP crapped out, and thats an easy enough fix, but I wanna try to verify first.

What I'm really asking here is how to pull codes (if there are any) if my idiot cluster is gone, is there somewhere i can hook up to in the engine bay, like an LED or something?

satch

iTrader: (1)

In an S5 there is a Green 3 wire check connector located by the leading coil which house a B/W wire and two Yellow based wires. This would be the plug you use I believe but not exactly sure which wires you would use. The B/W has voltage on it w/key to on so that wire would definitely be used. Whether you use both the other wires or just one I don't know in addition to not being sure if you ground the single wire check connector by the leading coil to start the code search but I believe you do. So you could play with it and see what happens.


This might apply: https://www.rx7club.com/showthread.p...heck+connector

markusparkus

iTrader: (1)

FWIW, my car stranded me 150 miles from home once in limp mode. Turned out that it was the O2 sensor wire in the harnes was bad. Running a new wire fixed it. There were no codes to indicate this.

Might be something to check out

MIDNFauciUSN

iTrader: (8)

Thanks for the replies... I just resolved it.

The O2 sensor/AFR gauge was my best clue on where to start. So last night I installed an e-fan, with simple thermostatic switch, but decided to add my own relay, as the switch was just a switch, and didn't have a relay built in.

I found that the steering fuse would blow immediately after replacement - ah hah! So, I pulled the ground from the relay, tried another fuse, and no blow this time.

Apparently when I wired up the relay, I was in a hurry last night to hang with the ricers, and mixed up 2 wires, which blew the interior steering fuse. This was also where my narrowband happened to get it's power from - hence the non functional gauge. Now why the ECU would go into limp mode from a blow fuse on the steering circuit, I have no clue... but I also didn't wire up the engine, so I have no idea what is on what circuit.

After rewiring the relay, and replacing the fuse, voila... working AFR gauge, and no limp mode.

Thanks for yall's time!