Car won’t start after flashing

[Habu]

I had a battery tender on the car. Car was also in diagnostics mode with everything tuned off. Minus the hood being opened (for bat. tender). After a successful flash and waiting min 30 secs I tried cranking it three times now and it won’t start. I did get a bunch of drivetrain faults during the flash process I noticed for some reason. Are you suppose to clear any previous codes before flashing? If so, I did not. **This is also the 1st flash on the dme ever**.

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[razorlab]

drivetrain faults during the flash process is normal.

Try flashing the car again, or flashing back to what you had before this issue.

 

[Habu]

I was stock ecu tune before.

drivetrain faults during the flash process is normal.

Try flashing the car again, or flashing back to what you had before this issue.

 

[razorlab]

I was stock ecu tune before.

Then flash back to stock and see if that solves it. If it does, something in the tune is off. Is OTS or custom? If custom, you can try flashing to an OTS map before stock if you wish.

Any fuel mods? HPFP or injector upgrade?

 

[Habu]

Then flash back to stock and see if that solves it. If it does, something in the tune is off. Is OTS or custom?

MHD OTS Stage 2

 

[Habu]

Then flash back to stock and see if that solves it. If it does, something in the tune is off. Is OTS or custom? If custom, you can try flashing to an OTS map before stock if you wish.

Any fuel mods? HPFP or injector upgrade?

No fuel system upgrades.

 

[Habu]

Then flash back to stock and see if that solves it. If it does, something in the tune is off. Is OTS or custom? If custom, you can try flashing to an OTS map before stock if you wish.

Any fuel mods? HPFP or injector upgrade?

Could having E15-E20 in the tank affect the OTS 93oct map flash?

 

[razorlab]

Could having E15-E20 in the tank affect the OTS 93oct map flash?

Do you have sensor tied to the DME or just the mix? Either way, shouldn't effect it with that little. Did you also turn the car fully off after the flash?

 

[Habu]

Do you have sensor tied to the DME or just the mix? Either way, shouldn't effect it with that little. Did you also turn the car fully off after the flash?

Just mixed, no ethanol sensor. I did not turn it fully off (all electronics on still & still was in diagnostics mode) before cranking it. But I did after the first two cranks and then the third still nothing

 

[razorlab]

Just mixed, no ethanol sensor. I did not turn it fully off (all electronics on still & still was in diagnostics mode) before cranking it. But I did after the first two cranks and then the third still nothing

Try flashing it again. Do you have any current codes after trying to crank it?

 

[Habu]

Try flashing it again. Do you have any current codes after trying to crank it?

Lemme check. And clear them.

 

[razorlab]

Lemme check. And clear them.

Take a screenshot of any codes before clearing

 

[Habu]

Take a screenshot of any codes before clearing

 

[razorlab]

Clear codes. Put back on tender. Check battery state of charge in Bimmerlink if possible.

 

[Habu]

12.3 volts at the moment according to MHD. Guess you need a full 12.6v to turn over the car. Even with a large cca capacity too. Battery was also fully charged overnight before I began flashing it.

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