Minitrouble
08-02-2020, 10:14 PM
Hello,
I'm looking for help diagnosing a start issue with my 2010 mini cooper. I'm not experience with cars but I have an older mechanic with over 40 years of experience; just not with new computerized vehicles.
My car stall out while driving and we couldn't restart.
We ran a bunch of diagnostics and replaced various parts throughout the life of this car without issues.
After the car stalled, we replaced the battery, replaced the ECU (clone from my current one). The original one has shorted. It could be by us trying to jump start the car. I don't know.
After we install the new ECU, we cleared all the code and re-read. No code. But the car still didn't start. It seems like it almost want to start at the beginning.
We have:
- Sparks
- Voltage from Relay in fuse box to DME cable to coils
- compression
- gas pump is functioning (line has gas sprayed out, we tested by draining and filling multiple times).
After we tried to started a few time, we were able to read one code; P15E8.
I did some google search and it related to the coolant sensor. We never touch that part the entire diag. We removed and check the sensor anyway. It seems fine. I think the reading was 4.4 ohm. I'm not sure. We tried to bypass the sensor with a wire, clear the code but the car still didn't start.
The mechanic said that with compression, sparks, and fuel, the car should have startup but he doesn't know why it doesn't.
Does anyone know if the clone DME has issue with the CAS? Would a ECU return any code if there is issue with the CAS? I'm looking for any help or anything else to look for.
Thank in advance!
I'm looking for help diagnosing a start issue with my 2010 mini cooper. I'm not experience with cars but I have an older mechanic with over 40 years of experience; just not with new computerized vehicles.
My car stall out while driving and we couldn't restart.
We ran a bunch of diagnostics and replaced various parts throughout the life of this car without issues.
After the car stalled, we replaced the battery, replaced the ECU (clone from my current one). The original one has shorted. It could be by us trying to jump start the car. I don't know.
After we install the new ECU, we cleared all the code and re-read. No code. But the car still didn't start. It seems like it almost want to start at the beginning.
We have:
- Sparks
- Voltage from Relay in fuse box to DME cable to coils
- compression
- gas pump is functioning (line has gas sprayed out, we tested by draining and filling multiple times).
After we tried to started a few time, we were able to read one code; P15E8.
I did some google search and it related to the coolant sensor. We never touch that part the entire diag. We removed and check the sensor anyway. It seems fine. I think the reading was 4.4 ohm. I'm not sure. We tried to bypass the sensor with a wire, clear the code but the car still didn't start.
The mechanic said that with compression, sparks, and fuel, the car should have startup but he doesn't know why it doesn't.
Does anyone know if the clone DME has issue with the CAS? Would a ECU return any code if there is issue with the CAS? I'm looking for any help or anything else to look for.
Thank in advance!