Fuel pump = no Power.

[Paukert11]

Ok this this is my problem..... SO i just picked up a new e30 and I replaced the head gasket. After that I went to start the car and nothing happened. So I found out that the fuel pump wasn't getting any power. So I checked the relay "b" and it was getting power. Then I checked the fuse but it wasn't getting any power. The car has a after market alarm and I was wondering if that was the reason why it wasn't working?? Or do you guys think that it could be the fuse box??? but that's the only fuse I am having a problem with........... so what do you guys think?

[jrdeamicis]

I need the year of the E30

[billybobjoseph]

Check fusible link on smaller of two battery cables about a foot from the battery under the carpet in the trunk ( assuming you don't have the vert ). Looks like a flat spot on the cable - peel back the rubber cover. It's 50 amp if you have to replace it.

[jlevie]

Are you checking for power when cranking the engine? The DME controls the fuel pump relay and only commands pump operation when timing data from a rotating engine is presented to the DME..

A common mistake after engien work on a 325i/is/icis to get the CPS and Cylinder ID connectors swapped. That will prevent the DME from seeing timing data and thus the pump won't run.

[Paukert11]

its a 89 sedan. I am checking it when the key is turned to the on. i will check the small fuse.

[jlevie]

its a 89 sedan. I am checking it when the key is turned to the on. i will check the small fuse.

The pump isn't powered just with the ignition on. It won't have power until the DME sees timing data from a rotating engine.

[j0nny5]

haha this got me one of the first times my car wouldnt start, damn non priming fuel pump...

[Paukert11]

By any chance could the security system have anything to do with this???? I just un plugged the ecu to re set it. I checked at the crank sensor plug and 2 of of the three were grounded.

[StereoInstaller1]

By any chance could the security system have anything to do with this????

no

[Paukert11]

Ok thats what I thought.

[Killacortes]

Check fusible link on smaller of two battery cables about a foot from the battery under the carpet in the trunk ( assuming you don't have the vert ). Looks like a flat spot on the cable - peel back the rubber cover. It's 50 amp if you have to replace it.

on my 89ix this is what was wrong with it. i was doing the same as you were i replaced the head gasket and i guess this little fuse blew out along with my cps sensor, it wasnt working. my fuse was only a 5 amp fuse tho

[Paukert11]

The fuse in the back was good........

[Paukert11]

this is a auto. but i don know where the starter rekay is.

[Paukert11]

Ok so I found the starter relay. I just don't have power coming out of number 30 but i have power coming of the ignition black wire that's powers it. I feel like im getting closer!