fuel pump not pressurizing

[Sin'sVr4]

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ok, so i am gettting the car back together from the tranny swap, and now i tried to start the car. well, accidentally put the cables on my battery backwards. (i know right). Well, i blew a 60a ABS fuse, but everything else seems fine. car turns over, but when i put the key in the on position, the fuel pumps dont whine (twin wallys). i checked voltage and im getting 12.4 to my hotwire kit relay. pulled the relay out of the cover and when i manually push it together they whine. So, i got two diffent new realys, swapped them in and nother still. I have no fuel pressure when i crank the car. (looked at my FPR guage). Only get pressure when i squeeze the relay itself manually. What is going on? I think i fried my HKS DLI too. Besides the fact that i did a complete noob thing, i hope i didnt fry my AEM EMS. I havent got my new shorty velocity stack intake runner so the car isant 100% back together. What could be wrong? and how can i test my EMS and DLI to make sure its ok.

[Hans@GZP]

Sounds like you aren't getting power out of the black w/blue stripe wire from the MFI relay. You dun fucked up.

[Sin'sVr4]

Sounds like you aren't getting power out of the black w/blue stripe wire from the MFI relay. You dun fucked up.

okay....so that helped lol. what do i need to do? test the mfi relay?

[Hans@GZP]

It's either going to be the MFI relay, or check the rest of your fuses, or your EMS. Connect your computer to it and see if it's still working.

[mb3000]

How to test the relay.

You can test the MFI relay independent of the car. Pull your battery and grab some spare wire a couple feet long. When connecting and disconnecting the - wire on the battey terminal the relay should click.
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+ to 10, - to 8
+ to 9, - to 6
+ to 3, - to 7

Edit: Here is a diagram, along with a picture of what the inside of the relay looks like. (for those who might be curious)

[Sin'sVr4]

ok, well i was going thru my electrical service manual and foundout my #12 fuse and it controls the mfi relay and ignition. so i checked the fuse and it was blown! replaced it and the fuel pumps came to life!! then i checked the DLI and she is lit up!!! thank GOD!!!!!!!!!!!!! im so excited. My wife was like wtf? lol

[Intropy]

put the cables on my battery backwards. (i know right)

LOL did you put the battery in backwards or something? It's hard to even do this on these cars.

[Sin'sVr4]

yup. haha. thankfully shes ok. i was seriously thinking of parting her out. when i thought i fried everything! thank god it just popped a couple fuses.


Do you just have the block for the iac?

[Intropy]

yup. haha. thankfully shes ok. i was seriously thinking of parting her out. when i thought i fried everything! thank god it just popped a couple fuses.


Do you just have the block for the iac?

To sell? I mean I have it, but the whole thing is assembled and wired, I'm not going to split it up.