Astra J dtc help

[teerak2uk]

Wondering if anyone has some advice on these codes and if the fuel pressure looks higher than it should be

[Meat-Head]

In short, no sure, put volt meter on pressure sensor vague idea 1volt per 100 bar

if you stall engine does pressure drop like a stone? Could be injector
deffo use another diag tool

[teerak2uk]

Pressure fluctuates but volt always shows 2.59v

[Meat-Head]

OFF TOPIC:-

had a car in once, for O2 sensor fault, unplugged both sensors, live data showed them both working correctly, had it before
and since where ecu displays what it expect and what it gets.

ON TOOIC:-

connect osliscope to sensor and regulator.

is it supermarkets fuel all the time?

[teerak2uk]

OFF TOPIC:-

had a car in once, for O2 sensor fault, unplugged both sensors, live data showed them both working correctly, had it before
and since where ecu displays what it expect and what it gets.

ON TOOIC:-

connect osliscope to sensor and regulator.

is it supermarkets fuel all the time?

No scope unfortunately supermarket fuel not sure but told him to change fuel filter for starters

[racin-snake]

Looks like high pressure pump or component on the pump like DRV breaking down .

try cleaning out drv etc also check a wiring diagram see if any two components share feed or earths etc

[mihac]

Check fuel temperature sensor and wiring. Wrong pressure may be consequense wrong temperature.

[autoden]

I agree with mr meaty, do a back leak test on injectors. Pump could be low, then when it fires pressure goes through the roof.

[dimitar]

Fuel injectors