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Old 08-18-2018, 04:50 PM   #11
der Junge
JerryJS8's Avatar
Join Date: Sep 2004
Location: Normal Saxony

Still got a problem with my MAF and a bit of one with the idle control valve. Every now and then I get the 1-2-1 code, but no real drivability problems. At idle the control valve is slow to react, letting the rpms drop down to 500 and then recovering after a few seconds. It's a brand new unit, so it's not gummed up and in need of a cleaning. As far as the wirings, I already renewed ALL the grounds, stripping the wire and soldering on new connectors, now it's the positive leads I'm after.

I think I found the culprit hiding in the shadows, and I don't know if that spade connector wrapped in electrical tape is supposed to be there... The way the relay box is crispy and brittle leads me to thing the wire burnt through at one point and was spliced together on the lazy.


...and corroded

Got to robbing my spare relay box and replaced the crusty power supply wire with a fresh one, maybe that'll solve my problems. Otherwise I'll have to get deeper into the wiring harness...

- 1987 244 (hand-me-down first car)
- 1990 744 (white with red leather)
- 1992 965 (green with tan leather)
- 1990 744 16v (pegleg drift can)
- 1992 480 (Renault disaster)

- 1989 745 16v
- 1991 744 (SE) 16v Turbo

Originally Posted by nordmaschine View Post
Try to recreate and see what happens, our crystall ball servers are currrently down.
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