Quote:
Originally Posted by ricnor
I have had problems with this before and thought all was now ok but the other day after driving for some time the engine just suddenly cut out altogether and wouldn't attempt to start and hasn't since.
The spark is a bit weak but the fuel pump isn't working , however the pump is ok as I have put a lead directly to the connector at the rear and it bizzes away no problem.
I took the fuel pump relay out and put a volt meter over the 5 terminals and the following is what I got.
Just turn the iginition on and the top left terminal 0.01v. Top right terminal also 0.01v. Bottom left terminal fluctuating between 0.25 and 0.30v. Bottom middle terminal 0v and bottom right terminal 0v
When cranking the engine over - Top left terminal 0.12v Top right terminal 0.10v Bottom right terminal fluctuating between 0.32 and 0.29v middle bottom 0v right bottom 0v
and yes I did have my meter on the correct voltage setting but if nothing is giving anywhere near 12v then surely even with the relay in place it can't send 12v to the fuel pump so the issue would look to be prior to the relay. I have also checked all the fuses and they are all ok. Any one got any ideas as to where to look?
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What year and engine
Have you checked fuses for 12 volts both sides?
With the fuel pump jumped with 12 volts wil it start and what is the fuel pump presure?