ignition cuts out when pwm on

[Lookout22]

i was on the dyno today tuning my car and and i finally got to turning my boost controller on and it seems like everytime i did, it would casue some weird ignition cut. ive never run into this before but it put the brakes on the day for sure. can someone please help me see what wrong here? calibration file and datalogs attached

[Spunkster]

The issue appears to be related to VTEC activation. Check the wiring for VTEC and grounding engine bay grounds as it may be grounding through the VTEC solenoid.

[Lookout22]

I grounded the crap out of the engine in three different spots. It still only does this when pwm is activated.

[Lookout22]

Also some of the examples I see are no where near vtec activation

[Spunkster]

Post pictures of the grounds in the engine bay.

[Lookout22]

There’s enough to ground a lightning bolt

[Spunkster]

I don't see anything that goes from the battery or fuse box.

[Lookout22]

Battery is trunk located and ground is one of those same cables grounded to the body. Where is the fuse. Normally grounded ?

[Spunkster]

I would recommend that you try the ECU in a known working vehicle before doing anything else. I suspect a wiring issue in your vehicle is the cuase.