Please help, fuelpump not priming

[737 FLF]

Can anyone tell me where the inertia switch and the immobiliser are situated on my 1998 griff 500 as I have the same problem as this link:

http://www.pistonheads.com/gassing/topic.asp?h=0&a... fuel pump not priming !

[737 FLF]

Thanks a lot, I take it that's the switch?

What about the immobiliser unit?

[737 FLF]

Well I finally found the alarm and immobiliser modules (for all the good that did me!!).

Can anyone tell me which colour socket relates to what relay function, i.e. Blue = ? Black = ?

Thanks

Al

[737 FLF]

Forgot to add pic

[737 FLF]

Let's try again

[paulathome]

Those two relays are fuel pump and ECU power.
If either one is faulty your car will not run. If you swap over both relays it still wont start because they both need to be fully operational for the engine to run.
If you suspect either of them then replace the pair and then job done.
Paul.

[737 FLF]

Thanks Paul,

I have already replaced both relays with 100% guaranteed funtional ones.

What I need to know is, which socket; blue or black controls which function.

Al

[2Munkys]

The BLACK one is the MAIN and the BLUE one is the FUEL. Remember that the fuel-pump only runs up momentarily when you switch the ignition on. It's not until the ECU sees that the engine is cranking that the fuel-pump relay operates again.

[737 FLF]

2Munkys said:

The BLACK one is the MAIN and the BLUE one is the FUEL. Remember that the fuel-pump only runs up momentarily when you switch the ignition on. It's not until the ECU sees that the engine is cranking that the fuel-pump relay operates again.

Thaks very much 2Munkeys, that helped very much.

When immobilesr is de-activated I can feel both relays doing what they're supposed to do.

I am getting 12 Volts at the injectors so I think it's reasonable to believe that the problem doesn't lie with the immobiliser.

The inertia switch is fine.

I've rigged a separate lead from the fuel pump feed to my multimeter and I'm still not getting any voltage to it when the fuel relay trips.

Has anyone discovered an inline fuse to the fuel pump which isn't on the wiring diagram (Typically TVR) as I can't think of anything else that might be causing the problem.

A swift response would be appreciated as I'm supposed to be competing on Sunday.

TIA

Al.

[737 FLF]

2Munkys said:

The BLACK one is the MAIN and the BLUE one is the FUEL. Remember that the fuel-pump only runs up momentarily when you switch the ignition on. It's not until the ECU sees that the engine is cranking that the fuel-pump relay operates again.

Thaks very much 2Munkeys, that helped very much.

When immobilesr is de-activated I can feel both relays doing what they're supposed to do.

I am getting 12 Volts at the injectors so I think it's reasonable to believe that the problem doesn't lie with the immobiliser.

The inertia switch is fine.

I've rigged a separate lead from the fuel pump feed to my multimeter and I'm still not getting any voltage to it when the fuel relay trips.

Has anyone discovered an inline fuse to the fuel pump which isn't on the wiring diagram (Typically TVR) as I can't think of anything else that might be causing the problem.

A swift response would be appreciated as I'm supposed to be competing on Sunday.

TIA

Al.

[Ozstyle]

Hi,
fuse for the fuel pump should be in the fuse box for a 1998 Griffith. No.13 I think