Hello guys, I need a bit help here. I just installed the Kraftwerk SC about 3 months ago and now the Gram fuel pump only work when it feel like it. So after reading the forums people suggest to replaced it since Gram is notorious for failing.

After replaced it wit AEM 320lph pump it worked a few times now the same issue happen again. It will turn on whenever it feel like it. What else am i missing here? Thanks

 

Sos wiring kit

 

I just unhooked the battery for 5 hours and it worked again.. sigh so you think it the power shortage problem with factory wire?

 

OR your battery, how old is it? Also do you hear it priming before you crank? If it does prime, does it not crank and start?

 

the battery is brand new. it doesnt prime when turning the key on that's why it doesnt start. once it start it go just fine.

technically it prime whenever it feel like it.

 

As much as we love the Kraftwerks kit. We don't use the Grams pump

I had 2 grams pumps fail and that's all it took.

Every kit we install gets a Walbro pump. We have sold 1000s over the years never had a bad one.

https://www.youtube.com/watch?v=5SGvrV0Vh6o

 

What do you do with all the old grams that come with the kit? Imho , Kraftwerks should just not include a fuel pump at all. I don't think they can offer the walbro , as grams, Kraftwerks, and skunk2 are all the same company. If you couldn't tell, my grams went bad from day one also.

 

I also had an issue with my Grams fuel pump. I was hitting boost cuts and it was also getting too hot to where it kept causing the fuse to blow in the kick panel. I upgraded mine to the Full-blown 340lph pump and got the SOS wiring kit. Haven't had a boost cut or blown fuse since.