Engine Light ON!?

[Hellfighter]

Originally Posted by DSX Tuning

It's a nuisance light that triggers when actual pump duty cycle for the stock pump doesn't match what the FPCM thinks it should be. It triggers because there's an external pump that the FPCM doesn't know exists, and when that pump is active during situations where the aux pump really isn't needed, the duty cycle on the stock pump scales down enough that the FPCM thinks something is amiss.

Thanks for clearing this up!




*Update* Issue has now been resolved, thank you all for the input and specifically DSX about the FPCM, no light, and car runs as wondrous as before.

[STUNNAH]

Good it got worked out...

[Hellfighter]

*Update* May 12, 2018 : Engine Light came back on after 30 min of driving, sitting at a stoplight.

DSX any ideas why again..

[ZO6 Bryan]

Originally Posted by Hellfighter

*Update* May 12, 2018 : Engine Light came back on after 30 min of driving, sitting at a stoplight.

DSX any ideas why again..

What code this time. It can't be the same one if it's been turned off in the tune.

[DSX Tuning]

Did your tuner actually turn it off?

[Hellfighter]

Originally Posted by DSX Tuning

Did your tuner actually turn it off?

Tuner did turn "OFF" the code, as per original post of this article but then it was another code today 5/19/2018, for similar thing and so i brought the car over, it was close to the shop and he just turned it off.


Weird that these codes keep popping off 1 by 1.


So as of today again the code was turned off, i did not get to see what the code number was but he told me it was again with fuel related with the FPCM being re programmed it threw another code off cause of the reprogram or something.


So i am just hoping this was the last one... lol this is going to give a heart attack, anytime i want to go drive on a nice sunny day and all sudden a engine light comes on, making me think something else is wrong with the car randomly..