Pump learn failed. Now won’t start

[Simonmate2010]

Hi all! I don’t normally post here but I’m desperate I fitted a prv valve and my engine was showing some imbalances and EGR fault so thought it might be due to rail pressure. Pulse width was low also. Now I ran a pump learn and it cut out but now the van will not start at all! Does anyone have any idea?

I have tried disconnecting the battery and I have forscan but I still cannot get is started.

[knobby1]

Hi all! I don’t normally post here but I’m desperate I fitted a prv valve and my engine was showing some imbalances and EGR fault so thought it might be due to rail pressure. Pulse width was low also. Now I ran a pump learn and it cut out but now the van will not start at all! Does anyone have any idea?

I have tried disconnecting the battery and I have forscan but I still cannot get is started.

Assuming you have a Mk7 Euro-4..?? You don't actually say what model Transit you have..?? FWD or RWD..?? 2.2 or 2.4..??

PRV doesn't control the rail pressure, it's just a relief valve and does nothing else. Was the new PRV a "genuine" Ford/Denso item..??

SCV controls the fuel rail pressure.

Is the fuel filter full..?? If not, refill it and try starting..

Disconnecting the battery does nothing except require you to reset the clock and radio code.

Have you replaced the EGR valve..?? They often play up/fail.

Lord Knobrot

[Simonmate2010]

Sorry was running to the forum and forgot the juicy bits lol it’s a 2006 280m 2.2 euro 4. Yes it’s got a brand new oem EGR valve. I’m worried the pcm has locked me out?

I’ll check the fuel filter in the morning thank you for this. Really appreciate the reply

I’ll update tomorrow!

[Simonmate2010]

Hi all! I don’t normally post here but I’m desperate I fitted a prv valve and my engine was showing some imbalances and EGR fault so thought it might be due to rail pressure. Pulse width was low also. Now I ran a pump learn and it cut out but now the van will not start at all! Does anyone have any idea?

I have tried disconnecting the battery and I have forscan but I still cannot get is started.

Assuming you have a Mk7 Euro-4..?? You don't actually say what model Transit you have..?? FWD or RWD..?? 2.2 or 2.4..??

PRV doesn't control the rail pressure, it's just a relief valve and does nothing else. Was the new PRV a "genuine" Ford/Denso item..??

SCV controls the fuel rail pressure.

Is the fuel filter full..?? If not, refill it and try starting..

Disconnecting the battery does nothing except require you to reset the clock and radio code.

Have you replaced the EGR valve..?? They often play up/fail.

Lord Knobrot

Running perfectly! Thank you so much!

Now I just have to run a pump learn but I think I need to reset the prv factors?

[Simonmate2010]

i have just tried to run the pump learn and it failed again - the engine is now starved of fuel again so assume that the filter is now low on fuel. would this be due to an air lock? do you think i should keep going until it gets through? the rail pressure is showing in range before i start the pump learn.

[knobby1]

i have just tried to run the pump learn and it failed again - the engine is now starved of fuel again so assume that the filter is now low on fuel. would this be due to an air lock? do you think i should keep going until it gets through? the rail pressure is showing in range before i start the pump learn.

Air ingress is the usual culprit....air leaks in and the fuel siphons back to tank and empties the tank.

You have an air leak in the low pressure side of the fuel system.

Lord Knobrot