[asthmamax11]

Originally Posted by KingLT1

So we ended up removing the SMG pump, reinstalled the LT4 along with adding a DSX Aux pump. The car now has plenty of low side.

LT4 intank AND the Aux system ?

That wasn't overkill ?

[KingLT1]

Originally Posted by asthmamax11

LT4 intank AND the Aux system ?

That wasn't overkill ?

LT4 in tank and JMS was installed before heads/cam/3-4 psi more boost and not enough. He originally didn't want to tap the tank so the lt4 was replaced with the SMG pump. Imo the SMG pump isn't any better than a LT4 with JMS. So he put the LT4 back in and installed the DSX. This setup is good for 1000whp on E60 if he decides to go that far.

[Megahurtz]

Originally Posted by KingLT1

P2635- Fuel Pump 1 flow insufficient.

You can actually disable this code. It's usually required to be disabled with the DSX aux kit. You can do some tweaking of the stock fuel pump to reduce the chances of the code with the DSX, but it makes no sense that the drop in pump would trigger the code since it is the only source of the fuel pressure.

[KingLT1]

Yeah, after some further research I found that it was a nuisance code that usually only presents itself with aux kits. I did disable it and had it working with the JMS but it still would barely keep up when the temps dropped into the lower 70's.

[Megahurtz]

Originally Posted by KingLT1

Yeah, after some further research I found that it was a nuisance code that usually only presents itself with aux kits. I did disable it and had it working with the JMS but it still would barely keep up when the temps dropped into the lower 70's.

Bummer, hopefully someone will have a viable plug and play drop in solution soon.

[KingLT1]

Originally Posted by Megahurtz

Bummer, hopefully someone will have a viable plug and play drop in solution soon.

Hoping Katech's pump answers that call!!

[asthmamax11]

Good info King
Thanks for follow ups