Fuel issues

num1bigguy

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I have been looking but can’t seem to find a fuse or relay for fuel pump. 2002 Conti
Went out into driveway to start car and warm it up, because it’s cold. Car started and ran right. Went back into house. Came back a few minutes later and it had stalled and won’t restart. I don’t hear the fuel pump whine anymore. Either a fuse or relay is bad or it’s my lucky day and I get to do a pump.
 

FlaOkie

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If you can -- check the fuel pressure.
This past mid-November my '02 would not start.
It had 6 psig fuel pressure. It should be in the 35-40 psig range.
My mechanic put in a new pump - all is well.
Also - don't forget to check/replace the fuel filter.
I don't have my service manuals handy - so can't help with the fuses etc.
For reference - my '02 had 83K miles on it when the pump quit.
 

num1bigguy

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hour north of detroit
If you can -- check the fuel pressure.
This past mid-November my '02 would not start.
It had 6 psig fuel pressure. It should be in the 35-40 psig range.
My mechanic put in a new pump - all is well.
Also - don't forget to check/replace the fuel filter.
I don't have my service manuals handy - so can't help with the fuses etc.
For reference - my '02 had 83K miles on it when the pump quit.
Ouch. Only 83k. I'm at 148k. I poured through the workshop manuals I have for the car. If anyone else sees this there is no fuse or relay for the pump. Hopefully for my sake its just the pump. Thank you!
 

FlaOkie

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Ouch. Only 83k. I'm at 148k. I poured through the workshop manuals I have for the car. If anyone else sees this there is no fuse or relay for the pump. Hopefully for my sake its just the pump. Thank you!
For future reference: -----

As I recall the '02 Conti has what is called a returnless fuel system.

In the older type return systems, the fuel pump runs at one constant speed. A pressure regulator is used to return unused fuel back to the tank.
This maintains the proper fuel pressure to the injectors.

The newer returnless type system uses a pressure sensor at the fuel rails to maintain the correct pressure by constantly changing the speed of the fuel pump.
The pressure sensor signal goes to a computer module, which actually varies the fuel pump speed and monitors it's operation.
 

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