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2006 WRX
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611 Posts
Discussion Starter · #1 ·
Hey guys, I just finished wiring up the fuel pump controller and tried to see if it worked. It didn't prime, but the engine will crank. I don't have my chipped key, as my car is expected to go to the dealer tomorrow to get the key programmed. I was hoping to drive it back from the dealer tomorrow but I won't be able to do so unless I get this issue figured out. Does the immobilizer stop the fuel pump from even priming, or am I facing a wiring issue? This is for my 2007 STI into 1999 RS.
 

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2000 Impreza++
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66 Posts
all the controller does is interrupt the power going to the fuel pump, so I'd say the immobilizer is the culprit barring a faulty controller. I'm in the process of wiring an 07 wrx into my 2000 rs and am fighting with the relays for the secondary air pump.....

I'll check my FSB for confirmation
 

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2006 WRX
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611 Posts
Discussion Starter · #3 ·
all the controller does is interrupt the power going to the fuel pump, so I'd say the immobilizer is the culprit barring a faulty controller. I'm in the process of wiring an 07 wrx into my 2000 rs and am fighting with the relays for the secondary air pump.....

I'll check my FSB for confirmation
Someone on NASIOC who did an STI swap had immobilizer troubles and his fuel pump was still priming. I'm going to have to grab a multimeter and see where I no longer get power.

As for the air pump, just pull it out, make a block-off plate and flash out the codes. It's pretty much useless anyways.
 

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2006 WRX
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611 Posts
Discussion Starter · #4 ·
Alright, well my fuel pump wiring looks to be correct. The relay turns on when I turn the key on, and shuts off after a few seconds (like the pump is priming). Also, I am getting a spark when I hook up the multimeter to the plug I just wired up for the fuel pump and then touch a bolt on the chassis for the ground. Aka, there is power going to that wire. The pump is still not priming, what could be wrong?
 
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