M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: teampump88 on June 16, 2007, 04:41:00 PM

Title: ECU / Car won't start after engine swap
Post by: teampump88 on June 16, 2007, 04:41:00 PM

Whats up friends,

Just wondering, is the ECU from a 1991 E30 318i M42B18, the same as the ECU from the 1992 318iC vert? The 92 was an E30, not E36.

Having trouble starting after an engine swap with a known GOOD RUNNING M42B18 from a 92 vert.  It's cranking but won't stay on.

- Checked for spark
- Theres 48psi fuel pressure
- Firing order is correct 1 3 4 2
- Tried to spray Carb cleaner in the MAF, no go

Thanks!

Title: ECU / Car won't start after engine swap
Post by: teampump88 on June 16, 2007, 10:57:30 PM

HEH... got it running... had the plugs from the harness reversed on the ignition coil...

:D

Title: ECU / Car won't start after engine swap
Post by: kowalski on June 17, 2007, 05:10:30 AM

i had a similar problem when i did a swap as well. I was missing a power wire to something... can't remember what it was though.

Title: ECU / Car won't start after engine swap
Post by: phredphish on June 19, 2007, 10:26:42 AM

Yeah, I had the same problem right after my swap. Took a bit to figure out that I had mis-wired from the coils.