On a 2006 Silverado 5.3
Well replacing my stock pump to an aeromotive 340 has caused me alot of issues. 1st wrong connectors for factory trigger.

And now my factory fuel pump connector doesn't send any power to the pump nor cranks. Fuel pump doesn't turn on when put in Accessory and the truck doesn't crank.
I've checked the battery 12.68V, changed relay's, checked EVERY SINGLE fuse(both under the hood and inside), checked ground on the filler hose neck, and tested the connection with a volt meter and it gives no power.

I need to get the truck running today any way to fix this? The plug worked fine and fuel pump but stopped working when I changed the pump(It worked when I tested it last night but this morning it didn't work) Tank is still on the floor with no fuel lines connected.

 

Can you get the previous pump to cycle?

 

what did you have to change to get the aeromotive pump to work? did you mess with the factory wires? when i messed with my aeromotive pump them ecmb2 fuse kept blowing under the hood.

 

The aeromotive pump draws too many amps for the factory wiring.

 

The hot wire kit is connected to the pump, and this connector(picture) was suppose to plug in to the factory connector, but had different bulk heads so I took off the pins and matched them to the factory connector. It worked last night when I tried to prime it but left it as is to continue this morning to mount the tank and I gave it another try before I reassembled everything but now its not working. I checked to see if the pump unplugged from the intank(no) and every single fuse, switched relays and still no. The thing that really has me questioned is why my truck doesn't crank.

Removed the pins and matched them to the factory connectors off this plug.

 

Pluged in a OBD 2 and it doesn't detect the Computer.

 

you should of got the hot wire kit for your truck. i have an 06 with a racetronix hot wire kit it was plug n play. the polarity was backwards and kept blowing ecmb2 fuse under hood. might want to double check the pos and neg for the pump.

 

I did get the hot wire kit from racetronix. Now the issue is that the truck doesn't even crank nor read the ECU

 

Find out what the OBD2 port uses for power. On the Chevy's it uses a the Cigarette lighter fuse. Make sure you have power to the port first.

Then check your Comunication lines and make sure everything is intact front to back.

 

Here's the pinout for the ODB2 diagnostic port. Make sure that you have power at the plug.