Why is my m50 running pig rich

[AirplaneBuilder]

Flames=fast

Leave it the way it is.

[ScHpAnKy]

I found my obd1 fpr at pep boys in stock. I think it was about 55 bucks. Bwd brand part.

BITCHIN'

That's cheaper than bav has it listed for and about even with everybody else, and I've got the only pep boys for this area a few miles from home :D

[drez14]

I found my obd1 fpr at pep boys in stock. I think it was about 55 bucks. Bwd brand part.

[ScHpAnKy]

Ok just watched the video. Dumping fuel at a fairly steady firing rate. I'm thinking fuel pressure too now. Unless you're building a funny car.

that's why I'm thinking it's FPR too, should I go BMW OEM (part# 13531436110)

or RRFPR ?

[greyis89]

Ok just watched the video. Dumping fuel at a fairly steady firing rate. I'm thinking fuel pressure too now. Unless you're building a funny car.

[drez14]

+ 1 on stuck injector. or it could be a fuel pressure regulator problem. If your fuel system is running at a higher psi, then more fuel is shot in a given injector cycle. Pull your injector rail and jump the fuel pump relay. If you see leaking fuel then you know what and where the problem is.

I dont think its an 02 sensor problem. It wont run optimally without one, but i dont think the computer is capable of overcorrecting so much that it will consistantly shoot flames.

[ScHpAnKy]

I was unaware that a 413 works on a NV.

I was unaware that the 413 didn't! :D
I know the later ones definitely don't work

[N2MYE30]

I was unaware that a 413 works on a NV.

[gp.plus]

Pull the plugs, that should tell you which cylinders are running rich.

[greyis89]

My swap at it's early stages ran super rich and stumbled with a very touchy throttle. Maf sensor was the culprit for me after checking many of the things already mentioned.

[ScHpAnKy]

O2 Sensor. 413 ECU and a stuck injector are all prob your issues

Stuck always on? I've got a shit ton of injectors I can swap in for free, but how do I figure out which one it is?

I just bought an LC-1, I understand I need to run the narrowband back to the DME for it to function as an O2 sensor and not just gauge?

Also, I have two 402 ECUs I can swap in, are they better than the 413?

Fuck it man. Flames are cool.

Hell yes! But I only want them between shifts :P

[Nick_S]

Fuck it man. Flames are cool.

[328ijunkie]

O2 Sensor. 413 ECU and a stuck injector are all prob your issues

[ScHpAnKy]

welp, if I can the LC-1 working with this, than I suppose that'll be my next step!

thx all

[nando]

I don't get running a car with no O2 sensor. it's as critical to a modern EFI system as a MAF.