1990 BMW 750Li

1ROMIK

MEMBER
1990 BMW 750LI
V12
2WD
AUTOMATIC
68,000 MILES

I have a 1990 750il, that has been sitting in the garage for the past copule of years, recently took it out and the engine is working rough. When I press the gas, only the right side throttle valves are working. When I disconect it, then the left valves work. I hae changed both engine computers, throttle position sensors, and the fuel pumps. The car still does not work well.

1 Reply

DOCHAGERTY

MECHANIC
9,601 POSTS

Have you had this problem before storage? BMW cars of that vintage had several driveability issues due to faulty connections and weak drivers in some of the control modules. You say you replaced both computers, did you replace the EML module? Has an assessment of any possible rodent damage been done? The little buggers like to chew and can sometimes be a real pain in the pocket book. Let us know what you find.