**Help** Car Stalling on Cold Start

[frozen_m5]

**Picture for attention, not my car**

2016 BMW M5

I’m currently experiencing an issue where the engine stalls on cold starts only. As soon as the car starts, it will run normally, then proceed to jump in rpm’s for a few seconds and completely shut off. Once the car is warm, it will start up perfectly fine. The car has a brand new motor, brand new injectors, upgraded rod bearings, etc. I’m not sure what the issue is, my mechanic is insisting it’s due to the tune being old (the one that was on the car when I bought it), however I have since flashed the car back to stock and the issue still remains. Any advice would be greatly appreciated.

Mods list- PG Intakes, Evolve Downpipes, Mishimoto Charge Pipes & Charge Coolers

[M5_Raz]

Known, common issue. I strongly suspect it’s the intakes. Just mildly feather the gas pedal for a couple of seconds to keep it around 1k rpm.

[frozen_m5]

Thanks, my only question to that is do you think that would cause any harm to the motor?

[M5_Raz]

I don’t think so, especially if you keep it at a constant rpm until it settles.

It’s more of an annoyance.

[M5_Raz]

More quality gas brands and higher octanes help. I am in California where gas is very bad, so we deal with it.

[frozen_m5]

Thanks brother!