XJ6 & XJ12 Series I, II & III 1968-1992
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XJ6 Fuel Pump Hell

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  #1  
Old 04-19-2012, 03:40 PM
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Default XJ6 Fuel Pump Hell

Hello,

I just replaced the fuel pump in my 1992 XJ6 (again). I started the car while it was still up in the air and it was running fine. Shut it down.
(I had to re-seat one of the fuel lines to get it to stop leaking.)

Started it again and it ran for a minute or two then stalled. I dove under the car and saw the fuel line connecters were all sealed up. :-)
Tried to start it a again, no go...

It blew the fuel pump fuse.

Has anyone heard of OEM fuel pumps shorting out in 5 min or less?

When I disconnect the fuel pump and turn the ignition on the fuse does not blow.

Help!

Scott Christopher
 
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Old 04-19-2012, 04:31 PM
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Default OK, not the fuel pump...

Now it gets fun.

I am blowing the C8 25A fuse when the car is running after about a minute.

I just pulled the tank, got the pump out and tested it a less than 2 amps.
I hooked up the old pump and it tested at less than two amps.

Can anyone send me a schematic that shows where fuse C8 is going?

All this after setting up the return of the new fuel pump...

Help!
 
  #3  
Old 04-19-2012, 04:58 PM
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C8 is listed as FUEL PUMP CONTROL / LAMBDA SENSOR
 
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Old 04-19-2012, 05:18 PM
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Default Solved!

When the connect to the Oxygen/lambda sensor flops over and melts to your exhaust manifold, C8 Blows!

Putting my gas tank back in now...
 
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Old 04-19-2012, 05:49 PM
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Good to hear you got to he bottom of it.
 
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