4.0 V-6 tuner?

[cbxer55]

So, in the Lightning world, the SCT X4 is considered the best. Would that still be true for Stangs? And do all of them make you sign a statement acknowledging they are for racing use only? LMAO!

There's no testing where I live, so it isn't a problem.

 

[Bullitt95]

Yup, it's the most popular for Stangs too. Get a custom tune rather than using one of the canned tunes from the handheld tuner, and use the tuner to upload it into your ECU.

 

[cbxer55]

SO, when you buy one from some place like CARiD, you can order a custom tune when you buy it? Or do you do that after you have it in hand? I know nothing about tuners. I really want to get a 93 octane tune so I can run it without the damn misfire CEL setting. As it is now, any time I put in 93, I get a misfire CEL. I put two gallons in a full tank the other day and within 40 miles, went from no codes to a P0300 and P0302. Put 3 gallons of 87 in it yesterday, cleared the codes, and they've stayed cleared. It's a real head-scratcher. Only thing I can think of is the 93 has an excessive amount of methanol in it. But, my Lightning and tuned up V6 Ranger do fine on it.

 

[Bullitt95]

Just buy an unmarried SCT tuner and ask someone like Brenspeed to send you an email tune.