Afe intakes/inlets with VF tuner tune

[brian1234152]

Hello everyone,

I recently got my GX 550 tuned with the VF tuner 93 OTS v3 tune. My issue is I was already running AFe intakes and inlet pipes.
The extra airflow is most likely what is causing my misfire/check engine light because the VF tune is designed for a stock car.

I already reached out to their support but figured I would give the forum a shot if anyone had the same scenario and found a custom tuning solution.

thanks!

 

[munkeeboi]

I am on the 91 tune withe the AFE intakes with no issues. When are you getting the misfires?

 

[brian1234152]

I am getting it upon full throttle at high rpm in 2/3/4 gear. Do you also have the turbo inlet pipes?

 

[munkeeboi]

no inlet pipes for me, but to be honest, I'm not often at full throttle but the few times I have tried, no errors

 

[Sckill]

Having a larger intake and inlet pipes just "allows" for more air to flow in. How much air gets sucked in is going to be determined by the ECU and what boost pressure it wants the turbo to hit. Bigger intake just means you can run at higher boost over stock depending on the ECU tune.

So your misfires are likely being caused by something else.

 

[c17flyer]

I don’t have the VF tune or intakes but I have the pipes and AFE Tune and I get a misfire code quite a bit