Help with surging idle

[i_build]

I'm surprised. New icv fixed my surging. The one that was on it was black and aluminum and the one I purchased was specific to the vin on my engine 1996 328. It was completely aluminum and it didn't fit...

[i_build]

Exactly. Only after she is warm she starts up with the surging. I was thinking maybe warm up enrichment compensating. I wish I installed my wideband when I was welding in the o2 bung. The new iacv comes...

[i_build]

M52 b28 into an 87 325is. I smoke tested it thoroughly and there's no vacuum leaks even confirmed with a can of carb cleaner. Tried new plugs, coil packs to no avail. Swapped a spare TPS in to see if...

[i_build]

Just purchased the chip burner and some chips. I also downloaded and installed Tuner Pro along with the XDF for the red label 413 ECU. I downloaded the M3 325 stock Bin and I think I saw that they came...

[i_build]

Does anyone have any idea as to why this topic... M52B28, OBD1, 413 DME, M50 Intake, Pink top Injector... tuning... seems to be so hard to get good info on... do most just switch back to OBD2 since OBD2...

[i_build]

Yes... that's the problem. Been studying a bit on MAF scaling and a bit on the programming side for the chips that go into the 413 red label. I still have my megasquirt and 42lb delphi injectors and...