Incorrect Fuel with Tune

[AZ18yote]

Drain tank, fill up with what you were running before, pull fuel line from rail and let pump cycle and catch fuel then re connect and let car idle for a bit to get the 85 out. You could also pull the rail and drain it for a piece of mind. Order a language and have lund send you a base file, datalog then get your flex and 85r tunes. Imho car has the stock tune still. No reason for the previous owner to keep a tuner that is still locked to that vehicle. Even though it has a tune required intake doesn't mean it has a tune. I have seen plenty of cars with a tune required intake running without.

But with a bigger maf AND long tubes it would be throwing codes or at least running like crap on stock tune. But agree on the route to go, drain and get flex / r tunes.

Sponsored