Trouble starting

[craig_the_german]

Hi, I have a 2010 90TSI manual. It has trouble starting.
Cranks over, won't fire.
Pull the ECM fuse (13 from memory), replace with the same fuse, fires first time.
Any clues?

[Guest001]

Battery or fuel pump

[Lucas_R]

Have you got a scan tool you can use to at the very least see if any error codes have been logged?

[craig_the_german]

Scanned and the only error was "Lost communication with the ECM"
Update. Had the Fuse panel under the hood replaced as it was believe that the "pull the fuse and it starts" was an issue with the fuse panel.
Sadly, we are back to the same issue.
Car will crank but not start. Pull the ECM fuse and immediately replace. Car starts first crank.
The car will continue to start multiple times through the day without issue.
Park the car over the weekend, try to start Monday morning.....cranks but not start. Pull the ECM fuse and replace, starts first go.
Very weird.

[h100vw]

Maybe the ecu relay if it has one

[craig_the_german]

I believe it has one, how would I check if the relay is stuffed?

[h100vw]

Replace it, or at least take the cover off and send me a picture. Might have a dry solder joint I can spot for you

[craig_the_german]

Update. Replaced the ECM relay and problem solved. Thanks for the advice

[h100vw]

Update. Replaced the ECM relay and problem solved. Thanks for the advice

Excellent. Did you open up the relay for a look?

[Lucas_R]

Update. Replaced the ECM relay and problem solved. Thanks for the advice

Good to hear you solved the issue.

[craig_the_german]

Yes I did open it up...curiosity got me.
Looked like one of the contacts had some corrosion/burn on it.