[travislambert]

I recently installed a Magnuson 2650 on my '17 ZL1. As part of the upgrade I installed a DSX Tuning auxiliary fuel pump kit.

In the logs, I've noticed a few issues.

• When the aux pump kicks on, the in-tank pump backs off in an attempt to maintain the desired fuel pressure. However, when the aux pump suddenly turns off, the pressure dips significantly before the in-tank pump has the chance to get back up to speed. There's probably a way to tune around this, but I wish the DSX kit would just use a PWM pump and phase out slowly.
• Sometimes, mid pull, I'll see dips in fuel pressure. It's not because the pumps can't keep up with the load because the pressure will recover on its own within the same pull. Something else is going on.

If anyone has experience tuning for one of these auxiliary pump kits, I could really use your help and insight.