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Fuel pump not working

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May 4, 20224 yr

I have an sq5 deisel 3 litre 2015

Cgqb engine 72000 on the clock I am having a crank no start issue the fuel pump is not working with ignition on but when I run a electrical fuel pump test on obd eleven the pump works fine and I getting fuel to the rail any suggestions I am thinking fuel pump relay or fuse but I am having no luck finding the relay and the fuses all look good any help would be appreciated

May 4, 20224 yr

Hi check the cam belt has not slipped that would cause these symptoms, I have seen very similar before where the belt has jumped a tooth, only other possible culprit is the fuel rail pressure regulator is stuck.

Steve.

May 4, 20224 yr

1 minute ago, Stevey Y said:

Hi check the cam belt has not slipped that would cause these symptoms, I have seen very similar before where the belt has jumped a tooth, only other possible culprit is the fuel rail pressure regulator is stuck.

Steve.

Hi another thought is run a false fuel supply to the HPFP and try that if it starts that will nail it down to a fuse/relay.

May 4, 20224 yr

Author

Ok thanks I will give that a try

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Fuel pump not working

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Topics

C5 RS6 034 strut top mount

Are S5's notorious for not being serviced?

Help with some issues

Wing mirrors don't fold out when unlocking the car.

Park My A3 without having brakes on

A3 uncommanded engine shutdown

Audi A1 coil packs

Central locking

GEARBOX MALFUNCTION YOU CAN CONTINUE DRIVING

A% front suspension groan

Any ideas on what this sound could be? Audi A3 8P

Does anyone know what this high pitched noise is?

Alternator failure related to mild hybrid system?

A6 2018 C8 3.0tdi quattro drivers mirror indicator

S-Line suspension change

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