Lethal return fuel system wiring harness

[devilish64]

I've had the division x dual pump fuel system on my car for awhile wich comes with Lethal Performance wiring harness kit that is wired in a way that the fuel pumps run 24/7 when the key is on. Since the day I installed the kit I have had a check engine light wich I have always assumed is caused by the computer not having control of the fuel pumps anymore. Does anyone have a kit like this that they have rewired to not have the check engine light? I am sick of seeing that light on.... Thanks guys! Chad

 

[c0rn_fed]

That is weird, I have the same kit and no check engine light

Sent from my Pixel XL using Tapatalk

 

[devilish64]

When you wired it in did you tap into the violet signal wire or did you just cut it and tie on to it like the lethal directions show?

 

[69b302]

The FPDM codes are turned off in the tune, when using aftermarket wiring. You can run a Hobbs switch on one of the DivisionX relays, so the second pump only runs when in boost.

 

[devilish64]

Oh ok i guess that is my problem..... the tuner I was using must not have been up to speed on what to change in the tune up to turn the CEL off.