Anybody dealt with the P00087 error code yet?

[S-M]

This was intermittent but is becoming more frequent, ecu detects fuel pressure is too low, puts it into limp mode, restart of the engine and everything is fine, sometimes for weeks.

So far i have changed the fuel filter (genuine filter) fuel rail pressure sensor (aftermarket Meyle) and the fuel rail relief valve (genuine delphi)

The problem still persists, i have swapped back to my original fuel rail pressure sensor for now with it being genuine.

The vcds log always says the rail pressure is 2-300bar under the specified target, when it happens.

I have bought a low miles (2023) lift pump to rule that out although i am putting off fitting it at the moment, i would like to properlly test the current lift pump, i think you can detach a fuel filter hose, run the pump for a min on vcds and measure the fuel output over time but i cant find the specs.

Any help?

 

[rod_vw]

If you are a registered VCDS user why not try asking on the Ross-Tech website?

Or perhaps some of the gurus on the T6 Forum.

 

[S-M]

Today i removed the fuel metering pump and checked for metallic particles, this was clean, although i will possibly need to research the metering pump a little more to rule out it being faulty.

Ross-tech forum is an option although i was hoping a dedicated forum like the old days would have some dedicated technical people to offer help.

 

[mmi]

Please share a full VCDS Auto-Scan and

VCDS engine blockmaps

1) ignition ON engine OFF​

2) engine idling​

How-to:
VCDS > Applications > Controller Channel Map

[Single Controller Address - 01]​

[Login - leave empty]​

[Function - Measuring Values ]​

[Output - CSV file]​

The result files: blockmap-01....CSV will be in folder C:\Ross-Tech\VCDS\Logs\....

The vcds log always says the rail pressure is 2-300bar under the specified target, when it happens.

Any more details under what conditions it happens - e.g. engine load., instantaneous injection durations. Does the pressure other times follow the specified or just lagging always?

 

[S-M]

Please share a full VCDS Auto-Scan and

VCDS engine blockmaps

1) ignition ON engine OFF​

2) engine idling​

How-to:
VCDS > Applications > Controller Channel Map

[Single Controller Address - 01]​

[Login - leave empty]​

[Function - Measuring Values ]​

[Output - CSV file]​

The result files: blockmap-01....CSV will be in folder C:\Ross-Tech\VCDS\Logs\....


Any more details under what conditions it happens - e.g. engine load., instantaneous injection durations. Does the pressure other times follow the specified or just lagging always

 

[S-M]

Hi, sorry just seen your reply, annoyingly yesterday i cleared all the codes while coding out my brake pad warning light, the van is currently sitting on the driveway with around 20 miles worth of fuel in it ready for me to swap out the lift pump from the tank on sunday with a bit of luck, its also booked in for all its belts/water pump etc etc on the 16th july and i`ve asked the guys to supply and fit a new HPFP while its all apart regardless (it has 208k miles on it)

The van is only used on weekends.

I will get the lift pump changed on sunday and take it out for a run to see if its either fixed or i`m able to post a VCDS full scan, thanks for the help.

 

[S-M]

Hi, today i dropped the tank to swap out the lift pump with a low mileage spare to rule it out, unfortuantly it apears that the lift pump was revised so my replacement did not fit, i did notice that the pump check valve on the bottom had x2 pieces of plastic swarf blocking the holes and wedging the check valve open, i have attached a pic of the valve on the replacement pump.
I am not sure how much of an effect this could have but my original pump has been cleared and refitted till another correct replacement can be delivered.

The van fired up as normal but i have not driven it yet as the fuel tank is still sitting on the ground under it, pointless refitting the tank to take it back off again in a couple of days.

 

[S-M]

pics