After doing some suspension parts my 1990 325i wouldn’t start. Jumping the fuel pump relay worked and the pumped started. After switching the relays next to each other I got it to start. Assumed it was the relay, which at this time it seems like it was, now with a new relay the pump won’t start at all and jumping it doesn’t do anything either. Can someone thoroughly explain to me how to test the power at the connector to the pump as well as maybe a way to figure out if the pumped is bad? Also the connector to the pump has always been brittle and cracked but now it seems as though it’s a bit melted. Any insight?
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crank the car and look for a positive at the pump. No CPS signal will kill the power to the pump too.
Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 2005 Avalanche // 2024 Honda Grom SP // 2024 Yamaha XSR700 // 2024 Jeep Gladiator Rubicon
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What happens if you put the relay you swapped to get it running back?-Dave
2003 Lincoln Towncar | 1992 BMW 325iC | 1968 Cadillac Deville
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