I can't remember if the flapper on the Bosch Spider works the same as theB flapper on the GTV6.B It should.. Two things to try: 1) Make sure theB pump is grounded properly.B I'd unbolt the wire, clean it, andB reconnect it just to be safe.B If there are only 9v at the pump and not 12v, that could be a bad connection somewhere that's not carrying enough current to power the pump. 2) Try applying 12v directly to the pump.B Hook it up to a spare battery, or just power it via some long test leads directly from the battery in the car.B If the pump runs with 12v going in, then your problem is not the pump.. bs B From: John and Deb Dohrmann <[email protected]> To: [email protected] Sent: Sunday, January 4, 2015 3:38 PM Subject: [alfa] Testing fuel pump in '86 Spider Quad
My spider was running OK until it died at an intersection and since them won't start, cranks fine but doesn't fire at all. Compression, fuel and spark, right? I read online that the fuel pump should come on if I turned the key to run and then pushed open the air flow sensor flap. Put a remote mic on the pump, turned key on and opened air flow flapper, nothing from the pump. Ran a wire to a meter from each wire at the pump, tested against ground with key on, flapper open, no volts. Fuse by the brain box is good, I can hear the main relay click when I turn on the key, so makes me suspect the drive relay. Just to be sure, I put everything back together and cranked the engine listening to my mic on the pump - all I could hear was the starter noise. Again, makes me suspect the drive relay. But just to be sure, I hooked a jumper from each side of the pump and measured against ground while cranking the engine, now I have 9 volts to the pump. So the article saying that opening the air flow flapper with the key to on will run the pump is NOT correct. And if I have voltage to the pump but no pump whine, then it is the pump, not the relay. Any suggestions would be appreciated, especially how to test the fuel pump function while in the car without cranking the engine. Thanks John Dohrmann 1986 Spider Quad -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
