[MR2] Fuel delivery Woes
PeterB at esdm.co.uk
Thu Jan 1 12:11:16 EST 2009
Fuel Filter changed about 2k miles ago just before it was brought over
I think I have concluded that it (pump) is FUBARed. So does anyone out
there have a MK1 fuel pump they want to sell me ?
In my attempts to find the fault I also discovered that the handbrake
(ebrake) micro switch is broken so if anyone has one of these I need
I was hopping that 2009 would be a better year for my beloved two. Let's
just hope it's a blip.
From: Kurt Krueger [mailto:telek2 at att.net]
Sent: 31 December 2008 20:46
To: Peter Baines; MR2 Email
Subject: Re: [MR2] Fuel delivery Woes
> 1 ... should I be able to hear the pump running.
I can't hear mine, but I CAN feel the pressure build in the return
> 2 ... Is it possible that the pump is drawing current but not actually
Yep. Does the BGB have a current draw reading for normal operation?
I know that AC pumps (like well pumps) usually have a locked rotor
current draw spec. It's higher than normal draw, but if you measure
that amount of current you know the pump is frozen. Don't know
if the DC motors on a fuel pump can be diagnosed that way.
> 3 ... aside from changing the pump is there any other test I can
You've got current, so if you open a fuel line you should get fuel
if the pump is working. Maybe the inlet to the fuel filter you're
going to check out? The BGB has a flow measurement you can make.
An aside: I doubt that the fuel filter is completely plugged. You
should get a least a dribble no matter how much junk is in it.
How many miles? At 90K, mine was still passing fuel just fine but
an awful lot of dark gunk came out whem I changed it.
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