Question about 1987 Volkswagen Golf
Fuse is good.
Fuel pump is good.
There appears to be something flaky at the relay.
I can jump the relay (remove relay, connect two big sockets with jump wire) and the pump operates fine.
With either the old relay in place, or a new relay in place, the pump does not operate.
I removed the relay panel under the dash (omigosh, what a tight mess of wires) and everything there looks connected and it's as clean as the day it left the factory.
As soon you start the engine you can hear the feulpomp, if not, take out the feul pom and connect it straight to the battery, if the pomp works you can allways baypas the relais.
I has same problem, but i had a broken print in the relais and that i fixed, now the car runs 100%
(golf 1 cabrio 1986)
Posted on Jun 01, 2009
During the start/crank portion there is a separate signal sent to the relay, in other words you have a fuel pump crank and run circuits, all electric fuel pump cars are this way. This is why you need to check for the signal to the relay with the switch held to crank, disconnect the starter solenoid so you can do this test.
Posted on Oct 15, 2008
make sure you are getting the voltage (V) to the relay. Sure, you can easily bypass this aspect of the relay by shorting the contacts [enables V to relay] but that is entirely different V for the load rather than the V for the coil [which provides EMF, closes relay, makes contact, laaaa].
Evidently, you are getting V to the load [pump turns on once bypassed].
You aren't getting V to the coil side of the relay. Go back and recheck the wiring as well as the pump fuse. Take it out and do a continuity test [out of circuit].
Posted on Oct 15, 2008
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Posted on Jan 02, 2017
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