Evening all, as above, the bird was driving to mine after work on NYE and the dash came on with the check engine light, gear shift on dash showing change up and down arrow and the auto stop/start green light flashing.

Since bought a code reader and it comes up with P0090 - Fuel pressure regulator 1 control circuit.
Had a quick look earlier and upon unplugging the connector off the high pressure pump it came up with another error saying fuel pressure regulator circuit open, but the flashing green light for the stop/start stopped. It also struggled to rev when accelerator applied.

But I'm not sure if the high pressure pump that's at fault as it still drives ok, but tbf she drives like an absolute fanny so wouldn't notice any loss of performance anyway

From looking online, it suggests it could be the fuel pressure metering solenoid or whatever its called, the one with the grey plug as pictured below. anyone know what this is called, or have a part number? Or even if I am going in the right direction, or suggestions of other things to look at.


Thanks in advance!

Cheers

 

Have you cleared the fault and test driven after to see if it comes back?

 

Hello mate, the fault wont clear with the OBD reader.
I was assuming it is a genuine fault and with the engine running while the reader is plugged in wont clear it?

 

Don't know if you've come across this online, but it looks useful:

http://www.nijutech.com/p0090_fuel_pump-974.html

 

yep, found that yesterday cheers. job for the weekend lol

 

Ok so her ex was picking up her kids yesterday and saw the code reader and said have we tried resetting the codes. Well I couldn’t get it to delete them but he has

maybe i should have tried with just the ignition on lol

anyway she drove it 45 miles to mine with no issues so I’ll keep an eye on it!

 

Yeah that's it bud it has to be ignition on and engine off I go to loads of cars 'broken down' with eml on , half the time just needs a reset.

 

Hi, did this code ever come back on? We have the same and reset it.