Hi all !
I'm much more of a lurker and searcher than a poster but my situation has reached a point where I'm constantly scratching my hairless head !
Let me provide some background to my "No Spark"situation......
In December I had an issue with my water pump and parked the car for 3 months. I purchased the water pump, installed it myself and then the car refused to start ! Figuring that it was the fuel pumps, and I had a new Walbro at hand for the double to single swap, I swapped the pump. The car ran perfectly prior to my water pump issues.....oh yes, on some days if I switched the car off and attempted to start it immediately it wouldn't start unless I waited for roughly 10 minutes. Figured this was a fuel pump issue as it seemed to bog down a bit over 190kmh
Personal issues, work with constant travel prevented me from working on my car....this was about a 4 month period. Fast forward to last week and I resumed work on the M3.
This is where I am currently.....There is no spark from the coil but the fuel delivery from the pump is ok. I've checked the fusible link in the trunk....i even took it apart just to make sure the fault wasn't from there. Also checked the OBC relay, jumpered the 2 green wires still no spark. I changed the coil as I had a new one in my store and no difference...there's voltage at the coil but no spark. I changed the ground strap near the expansion tank too
The only areas left seem to be the ECU and the sensors on the bellhousing. I removed the 2 sensors and cleaned them but still no change....I''ve read that though they may pass an ohm reading check they still may not be functional.
As I'm resident in Lagos I don't have the luxury of going to a parts store to buy parts for this car....ordering from the US isn't an issue...its just the time. I've gone through almost all the "no Start" threads here and I'm just hoping it isn't the ECU.
Can you wonderful people point me in the right direction ?
Cheers,
Erik
I'm much more of a lurker and searcher than a poster but my situation has reached a point where I'm constantly scratching my hairless head !
Let me provide some background to my "No Spark"situation......
In December I had an issue with my water pump and parked the car for 3 months. I purchased the water pump, installed it myself and then the car refused to start ! Figuring that it was the fuel pumps, and I had a new Walbro at hand for the double to single swap, I swapped the pump. The car ran perfectly prior to my water pump issues.....oh yes, on some days if I switched the car off and attempted to start it immediately it wouldn't start unless I waited for roughly 10 minutes. Figured this was a fuel pump issue as it seemed to bog down a bit over 190kmh
Personal issues, work with constant travel prevented me from working on my car....this was about a 4 month period. Fast forward to last week and I resumed work on the M3.
This is where I am currently.....There is no spark from the coil but the fuel delivery from the pump is ok. I've checked the fusible link in the trunk....i even took it apart just to make sure the fault wasn't from there. Also checked the OBC relay, jumpered the 2 green wires still no spark. I changed the coil as I had a new one in my store and no difference...there's voltage at the coil but no spark. I changed the ground strap near the expansion tank too
The only areas left seem to be the ECU and the sensors on the bellhousing. I removed the 2 sensors and cleaned them but still no change....I''ve read that though they may pass an ohm reading check they still may not be functional.
As I'm resident in Lagos I don't have the luxury of going to a parts store to buy parts for this car....ordering from the US isn't an issue...its just the time. I've gone through almost all the "no Start" threads here and I'm just hoping it isn't the ECU.
Can you wonderful people point me in the right direction ?
Cheers,
Erik
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