Stumble before engine is up to temp

[Livernois Motorsports]

To be honest guys I would bet the farm on the fact that your car is suffering from a lean misfire. This is something that your tuner should be able to fix for you, although it is odd that you would have this issue post tuning.

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[SR56]

I've got it with my Steeda tune. It was more prevalent when I had a 92 tune. They had it in the shop and adjusted me up to a 93. It's been minimized, but I still notice it a little in the morning when the car is still warming up.

 

[Taneras]

The only thing I've noticed with my Lund tune is slight surging at low speeds (idle or slightly higher) every second or two until I get up to speed.

This never happens if I let my car idle for 10-15 seconds but always happens if I start it, and throw it in D a little too fast.

Is that what you're talking about?

 

[foghat]

fwiw, stock and tuned, I have have never had any sort of stumbling at any temp or rpm.

 

[LETHAL]

Feels like it's hard to get smooth shifting between gears for the first few mins. Not notchy or the shift itself, just how the motor runs till warm up between gears. I had this OEM and with tune. I assume this is what we are talking about?

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