luke_sedz

Hi,
I am having a few problems, 1 is no spark which I have read up on what to check but the other which I can't find the answer to is about the fuel pump.

I have an LS1 from a 2000 Camaro.
What voltage reading should I get at C101 pin D (fuel pump relay control)?

I know I am feeding to the correct wire on the car because when I put it to 12V the fuel pump works.

Thanks

bjamick

iTrader: (31)

On your relay you should have the wires on these:

86:Wire from the PCM 12V
85: Wire going to ground
30: 12V all time hot
87A: This wire should go to the fuel pump.

Once you have it wired like that it should work. Or the relay may be bad.

Old Geezer

iTrader: (3)

12V...AIRC, the fuel pump circuit is one the feeds 12 v rather than going to ground.

bjamick

iTrader: (31)

Ya the PCM fuel pump relay control wire supplies 12V. Which is what energizes the relay.