More B-Max fuse fun - fuel pump short - Ford B-Max Forum
 
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post #1 of 7 (permalink) Old 14th November 2018, 10:15 Thread Starter
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More B-Max fuse fun - fuel pump short

I'm still waiting for my fuse puller thingy, so no progress on the HFS problem. However, proving that problems don't come singly.....

My daughter was driving the car (2013 B-Max 1.0 litre 125PS Titanium - manual/petrol - 38k miles) last Wednesday afternoon, when the dreaded orange spanner appeared and the engine just cut out. She called me, and then rang Green Flag, who turned up promptly and plugged in their magic diagnostic screen. Three problems were revealed:-

P0087 Fuel Rail/System Pressure - Too Low. Signal Compare Failure.
P0101 Mass Or Volume Air Flow Circuit Range/Performance - No Signal
P053F Cold Start Fuel Pressure Performance. Signal Amplitude Less Than Minimum.

So, clearly a fuel issue of some sort. Mr Green Flag went to the engine compartment fuse box, and checked Fuse 34 (Fuel pump relay, diesel fuel heater) which had blown. He replaced the 20A fuse, and the engine started. So he gave me a couple of spare 20A fuses, and I set off to drive the three miles back to my home.

Sadly, after 2 miles the orange spanner appeared again, and once again the engine died. I replaced the fuse again, but with no joy - the engine wouldn't start and the fuse blew immediately. Fortunately, my local (non-franchise) garage was just around the corner, so the car was towed to their workshop.

They have had the car for a week now, and have not yet identified the problem - although they have told me that the fuel pump is not faulty.

So, has anyone had a similar B-Max experience? Or does anyone have any suggestions as to which areas to investigate?

Many thanks for your wise words,

David

Davidsb
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post #2 of 7 (permalink) Old 18th November 2018, 10:23 Thread Starter
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Problem resolved - the issue was a corroded section of the wiring loom causing an electrical short..

My local garage diagnosed the problem, replaced the damaged section and presented me with a very modest invoice for their efforts.

Davidsb
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post #3 of 7 (permalink) Old 18th November 2018, 11:11
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Thanks for letting us know.
So many people post a problem here but do not let us know the outcome.
Thanks again.

John

Titanium X Tectonic Silver 1.0 125ps Eco.
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post #4 of 7 (permalink) Old 9th December 2018, 12:33
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Hi. I think I'm having the same problem as davidsb. Was wondering where the corroded part of wire loom was located.
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post #5 of 7 (permalink) Old 18th March 2019, 23:51
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Hi

Could you tell me where the corroded wire loom was located please?
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post #6 of 7 (permalink) Old 2nd October 2019, 13:14
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Quote:
Originally Posted by Davidsb View Post
Problem resolved - the issue was a corroded section of the wiring loom causing an electrical short..

My local garage diagnosed the problem, replaced the damaged section and presented me with a very modest invoice for their efforts.
Hi

Have the same problem, could you tell me where about's on the wiring the problem was or the garage you used to solve it please?

Thank you.
RSFord is offline  
post #7 of 7 (permalink) Old 2nd October 2019, 13:17
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Quote:
Originally Posted by SandieW View Post
Hi

Could you tell me where the corroded wire loom was located please?
Hi, did you find the location of your fault please?
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