Problem with my 95 m3 :thumbsdown:

[m3f_Paulrd27]

Hello all,

I have a 1995 BMW m3 (complete car) engine runs but there is some type of electrical problem that i can't get sorted out, I don't even know where to start. Car has over 100k miles but engine is out of a 97 with about 60k on it. Car runs great but one day it just starting bogging down when i start it and I cant get the gas pedel to respond. replaced the DME and the chip. Anyone know where I should start? Any input would be greatly appreciated. Thanks!

[m3f_Bimmerman325i]

plugs? wires? clogged fuel filter/dying pump?

[m3f_Richardsperry]

If you replaced the ECU you either need to have the ECU aligned with the EWS or disable EWS. (you need a dealer or someone with a BMW GT1 system)

[m3f_///sleeper]

What you described doesn't really narrow anything down...have you been able to start the car since you swapped the DME? Did you try the original chip in the new DME and vice versa?



Does an OBDI conversion require you to bypass the EWSIII system altogether to get the OBDII engine to run on the earilier platform? If that's the case would it require an allignment at all (I wouldn't think so)? I'm assuming EWSII is not the issue.



Do you have fuel and spark? How about a vacuum leak?

[m3f_Paulrd27]

Tryed replacing the dme, old one was chipped with turner chip. Replaced cam position sensor and some other stuff, I'm not a car whiz my buddy has been trying to figure the issue out.

[m3f_shaeff]

Welcome to M3F. Hint: If you want us to be able to help you, please provide as much information as you possibly can that pertains to the issue at hand. The more you help us, the more we can help you.

[m3f_sivikvtec]

I do not see any mention of a check engine light?

[m3f_Supered ///M]

I do not see any mention of a check engine light?

+1 here is where I would start....and invest in a peake scanner

[m3f_shaeff]

+1 here is where I would start....and invest in a peake scanner

Really no need for a Peake scanner, he has a '95. Pedal trick works just fine.

[m3f_M3n00b]

Vacuum leak. Clean ICV/TB.

[m3f_fiveightandten]

Hello all,

I have a 1995 BMW m3 (complete car) engine runs but there is some type of electrical problem that i can't get sorted out, I don't even know where to start. Car has over 100k miles but engine is out of a 97 with about 60k on it. Car runs great but one day it just starting bogging down when i start it and I cant get the gas pedel to respond. replaced the DME and the chip. Anyone know where I should start? Any input would be greatly appreciated. Thanks!

So it's running an OBDI-converted S52 (96+ motor)?



How long has the swap been running?

Who did the swap?

Was it ever running properly after the swap?

Check engine light? Codes?