a.south1234

Hi,
I am currently trying to fit a f20c into a bmw 2002. I am struggling to get the fuel pump to work. i have put some wires from the battery across the pump and the pump works. I cannot hear the fuel pump relay click so i think this may have packed up.

I have measured the voltages on each relay terminal and i was wondering what everyones thoughts are.

With ignition off:
white green 4.3v
black 3.87v
yellow black 0v
green black 4.3v
blue orange 12v
yellow green 0v
green yellow 12v

with ignition on:
white green 12v
black 12v
yellow black 0v
green black 12v
blue orange 12v
yellow green 0v
green yellow 12v


What are peoples thoughts. I'm a bit puzzled by the 4.3v as i thought this would be straight supply voltages from the battery.

Also does anyone have a copy of the electronic schematic for the above s2000 as i currently have the LHD 2006-2007 version and it is completely different to all the wires i have :/
Thanks for the help,
cheers,
Aaron

UH-60DRIVER

So I'm in the same boat here. Everything was fine on Friday and over the weekend I put a new head gasket on. I did disconnect the batteries for the entire weekend. Ow trying to star it up I get no fuel pump prime. I do have power at the fuel pump fuse and I do have power going into the fuel pump relay but no power coming out going to the pump. I replaced the relay (PGM-FI) and still no luck. I'm pretty perplexed here. The car is on an AEM EMS V2. Any and all suggestions are welcome!!!
Jason

UH-60DRIVER

SOMEBODY PLEASE HELP

UH-60DRIVER

Figured it out!!!!after reading another thread Billman explained the the ground for the PGM-FI (fuel pump relay) is the ground strap on the back of the head. As soon as I read it I remembered that I never hooked it back up. Went and did it and viola....fired right up. THANKS BILLMAN!!!

vicdeng

can anyone show me any trick to remove the relay? i went underneath last night and couldn't figure out a good way to take the relay out.

thanks

soccaz34

Did you ever figure it out?