Hi all,

My wife's Fiesta MK5 is dying!  I work night shifts and woke up this afternoon to discover she'd been trying all day to get it started, no joy, and the RAC man who came round couldn't get it started either.

Seems to be a fuel pump issue and has been intermittently happening since about October though suddenly in the cold weather it's gone from occasionally not starting about 10% of the time to 100% not starting at all.

It also threw up diagnostic codes  P0135: O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) and P0141: O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2), in the last few days, though I understand a problem with the O2 Sensor Heater should not prevent the fuel pump from starting?

I replaced the fuel pump relay with a new one the day before and it started on first turn of the key. But today, apparently nothing all day, the car won't pump any fuel and it won't start.

I bought it for £500 odd and it's been great for the past year but unless I can DIY it myself (and I'm no mechanic, haven't got a ramp or anything to get underneath), it might have to be scrapped as the cost of getting it to a garage and then fixing it probably isn't worth it compared to the value of the car.

If anyone has any suggestions of things I could DIY check without having to get underneath the thing that would be greatly appreciated.

 

Thanks!

Hi. I know it is now some time ago, but did you manage to solve the problem you had with your fiesta flight as I have the same fuel pump concerns.

I don't know whether you will see this email but hopefully you might and can throw some light onto this frustrating dilemma.

Thanks, Andy