GH Tune now P0302

[Chronicle33]

I got my Gearhead AO tune two days ago and now I’m getting a P0 302 code. Anyone else has this issue?


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[Texas Marauder]

P0302 is a misfire on cylinder 2. Not caused by the tune itself.

 

[kryptto]

Did you update parts? Replace plugs maybe a bad plug replaced? Maybe ignition coils? Other than loading a tune what else have you done?

 

[Majestic]

Or possibly didn't get a coil seated properly? I've had that happen.

 

[CraxyMitch]

It's likely your plugs.

 

[SHO-moco]

Is this misfire always there or only occasionally like on cold startups? If i am not mistaken cold start misfires are common enough on these cars that the onboard computer has an offset for it, but dont hold me to that.

 

[MGMSHO]

It's likely your plugs.

I had this same issue, I had to go through a PIA way of getting all the parts since I live in Commifornia and I bought the wrong plugs and this happened. I finally bought the right plugs but just haven’t installed it yet since I have smog check with year

 

[SM105K]

Swap coils and see if the misfire moves to another cylinder.