Swapped engine shuts down

Need technical Q/A then you're in the right place

Moderator: martauto

Djuro
E30 Zone Newbie
E30 Zone Newbie
Posts: 15
Joined: Fri Feb 19, 2016 11:00 pm

Post Sat Mar 25, 2017 11:12 pm

Hello!
I decided to swap my engine (M10 1.6 -> M10 1.8i).
My car is in my friend's garage for more than a month, already. We managed to start the engine, but it shuts down after few seconds on idle or instantly after revving.
The air filter is brand new, the fuel pump is brand new, the lambda sensor is brand new, the MAF sensor and FPR are from car that worked normally. What should I check? What might be the problem?
Thanks!
Jona1971
E30 Zone Regular
E30 Zone Regular
Posts: 474
Joined: Sat Mar 15, 2014 11:00 pm
Location: Staffordshire Moorlands

Post Sun Mar 26, 2017 8:44 am

1. fuse 11
2. fuel pressure
3. coolant temperature sensor

good luck...
Moredoor autos with small engines are cool - but my new m20b25 is awesome!
Djuro
E30 Zone Newbie
E30 Zone Newbie
Posts: 15
Joined: Fri Feb 19, 2016 11:00 pm

Post Sun Mar 26, 2017 10:50 pm

Thank you for the advice. I will check those.

EDIT: Everything from above is OK. The car still shits down :/
User avatar
aimlessrock
E30 Zone Squatter
E30 Zone Squatter
Posts: 1821
Joined: Sun Dec 06, 2009 11:00 pm
Location: Manchester

Post Tue Mar 28, 2017 8:33 am

If I read your post correct you have converted carb to injection?...assume you have also retro fitted the fuel pump etc- I recall carb models and injection models had different fuelling set ups.
E30 320i Convertible (1989)
190 Mercedes (1988)

"there is nothing more expensive than a cheap E30"
Jona1971
E30 Zone Regular
E30 Zone Regular
Posts: 474
Joined: Sat Mar 15, 2014 11:00 pm
Location: Staffordshire Moorlands

Post Tue Mar 28, 2017 12:41 pm

Did you change the Ecu too?
Moredoor autos with small engines are cool - but my new m20b25 is awesome!
Djuro
E30 Zone Newbie
E30 Zone Newbie
Posts: 15
Joined: Fri Feb 19, 2016 11:00 pm

Post Tue Mar 28, 2017 9:37 pm

Yes, the ECU is the one that came with the engine. The fuel pump is new, bought according to OMW catalogue number, the lambda sensor as well.