e5 ecu pinout vs 62 pinout o2 sensor

[compactfean]

So I am running an e5 ecu on a redtop harness and on my quest to get my o2 sensor to work properly found that the o2 ground for the heater circuit is supposedly pin 114 for the e5 ecu and the redtop harness uses chassis ground for o2. I need a pinout for both ECUs to confirm this because if this is true the redtop harness doesn't even have a brown/yellow. Wire on pin 114 and will be very easy to fix. I would also like to dissect the 2 and make sure there aren't any other differences.

[compactfean]

New find. My harness definitely has no brown /yellow wire. Not at pin 114 not anywhere. On frsport it says when you extend the oxygen sensor there is a brown /yellow wire white and brown. My redtop harness is black white and brown. So for sure e5 ECUs o2 heater needs to be grounded to ecu at pin 114. You guys think I'll fry my ecu?...lol f*** it. Its getting dark so ill get on this in the morning and let you guys know if I get my afr above 11's,

[OutToWinPAHC]

Not sure but have you tried looking at any of the FSMs?

http://lib.store.yahoo.net/lib/phase2mo ... r20det.pdf

[compactfean]

The problem is the true s13 fsm is Japanese.

[OutToWinPAHC]

Have you asked the guys at wiring specialties? They are a vendor, and pretty helpful.

[compactfean]

Ill toss them an email and get back to you guys. Thanks man!

[compactfean]

So I must say I am thoroughly impressed with wiring specialties! That Guy emailed me back on a Sunday within 3 hours! So he informed me the indeed the e5 ecu uses ecu for ground but the redtop o2 sensor ground should work fine. I'm gonna try it anyways just to see. Also to answer my other post the iat for the SR is to kick idle up when using AC above 45°. This running rich only during idle is giving me a headache. I'm also gonna try a hotter t-stat.

[compactfean]

So I tried the ground straight to ecu and no difference. I also tried using my wideband as signal, no difference. My afr is good when cruising but when it idles I'm at, at best, 11.#$ afr.during idle is the computer in open loop? I can't figure this out.

[compactfean]

What is a z32 maf voltage supposed to be at idle? I've searched but am getting conflicting info. The fsm for a 300zx says 1.2 to 1.5 but that's a 3.0 I've read some kids say. 5 to .8. (Which would make sense, on my 200sx cobra maf is. 43) my voltage on my z32 maf is 1.18 at 800 rpm. Please pitch in your insight on this guys.