Sr20 bad idle. It's a ghost, calling all experts

[Znick742]

Alright just swapped my motor in last week, drove it to work all week. Runs great besides when it's below like 1500rpm. Through out the week I checked every sensor, rewired my maf twice with shielding.

Maf voltage was 1.5v on signal wire and 14v when running, 12v with ignition on. 02 sensor checked out good but made no difference when unplugged. Knock sensor checked out good but no difference when unplugged. I checked timing, I checked the cas. Tps is good. Car idles more steady when the maf is unplugged then when you plug it in the idle gets a little rough. It's also running really rich at idle but no smoke you can just smell it. Pulls good through the whole rpm.

So you guys ready to hear the scary thing....I hooked my electric fans up to my dads truck so they're not being powered by my car at all and when I hooked them to the truck my idle still dropped on my car! It's like the fans are affecting another wire signal somewhere. But if I unplug the maf and turn the fans on it doesn't affect idle. So I think the whole problem relies around the maf. Also with the fans on while driving the car feels slow

[Kingtal0n]

What ecu, what maf. whats the code on the maf 69f00?
Whats the code on the ecu #62?

clean the maf. check for boost leaks. change the maf.

check your ground by the battery tray, follow it. does it run to the intake manifold?
You have stock engine mounts?

I always advise keeping spare maf/ecu/rail for situations like this.