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2.7 HdI wont start

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Tobbe16Valve   
Mon May 12 2025, 08:03am
Joined: May 19 2019
Member No: #3924
Location: Höör
Hi
Im having big troubles whit my C6 2.7 Hdi.
The car wont start.

Got fault codes low fuel pressure.
Changed the HP-Pump, Commonrail sensor.

But the car wont start.

Used the Diagbox to measure some sensors input.

All the data is from cranking the car. The car wont start so the flat line is when ive stop cranking

As you se the sensors the measured fuelpressure comes up to 400 Bar as the referens vaule. One thing is whit the injectors that the cylinder 5-6 goes from 40 to 100 in the crank.

And what voltage is there to the injectors? And is the voltage continius when ive turn the key to ignition whitout cranking?
Tobbe16Valve   
Mon May 12 2025, 08:04am
Joined: May 19 2019
Member No: #3924
Location: Höör




 

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