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I unplugged the unit and drove around a mile and didnt notice any obvious difference with 40%. My air fuel mixture seemed to do the same thing. Idle at 14.1...hard acceleration drop to 10-12, come to rest it sits at 12 for 5 or 6 seconds and comes back to 14ish. I'm suspecting the unit isnt...

Okay so a little more research on my part helped. So the built in guage actually just reads lambda and puts it into regular gas AFR. So if I'm in flux between 13.9 and 14.4 sitting at idle I'm right around target?

I just feel that at idle with a warm engine (just drove 5 miles) with 40% ethanol, should my ratio be less than 14.1? I'm no genius with this stuff but if the 14+ is normal with gasoline, with ethanol it should be a little richer of a ratio if operating correctly right? Or is there something I'm...

I mean it's all kinda tied together. Most of the time if you have 02 sensor issues it's a Cat, and cats are only there for what? so I just kinda group it even though it's more complicated than that. I just meant it's nothing inherently mechanical, and almost surely not ignites. But you're...

Well the systems that are causing the light are all emissions related systems.....there's no knocking, no unusual vibrations, no weird sounds, no backfiring, no performance loss that I can detect, so it's almost surely part of the emissions side of the house (O2, Cats etc). My guess is it's a...

My bluetooth one that's been sitting around 3 yrs isnt working right so I ordered one that gets here tomorrow. Since the code popped on the freeway I'm guessing its just an emissions issue. I'm just gonna fill up with 91. I know it's nothing serious or catastrophic. I'll read it tomorrow.

Im going to drive it around a but more today and see if it clears....I rechecked all connections and reconnected the box, everything is in proper conditions. Gonna see if the code clears and if not I'll refuel with 91 and see if that solves it. If it does I'll be requesting a new commander and...

Yeah you may be right. I might have a bum AFD box and finally the pcm said screw it. I'm still wondering how the oxygen sensors aren't popped every time using e85 in a car that's meant to use 15 max...

I spoke too soon. On my way home this morning I popped a light. Nothing noticeable from a driving standpoint, just a service engine light. In fact I still took it to 7k+ with the light and didnt notice any difference...got home, let it idle, everything seemed perfect so I have no idea. I'm going...

So, I filled up E85 with 1/8 tank left of 91 yesterday. Put me about 65% ethanol. I drove a half a tank away today at all throttles, accelerations, and up to 120 on my private road, and drove around town a bit. The Proflex works exactly as advertised for me. My observations are (1.) Slight kick...

Nice! I got my proflex in so I went golfing today and drove the car in the high RPM's the entire time there and back to try to burn some of this 91 out of my tank! Have fun at the C&C! You have a beautiful R. Look forward to some more videos of your car. Going to install my commander in the...

Popping and backfiring really isn't an issue as long as you're not noticing any performance loss or uneven/jerky outputs when you're on the throttle. In fact many of today's sports cars have programmed their cars to do exactly what yours may be doing. My F type SVR sounded like a warzone all the...

Kinda alarming considering on tuesday they told me it would ship Wednesday....now its friday? I'm thinking about just cancelling so we'll see what happens today.

Yeah I ordered mine last thursday night, it's now Tuesday morning and I haven't heard a word about shipping or anything, so thanks for your response as it at least gives me some insight. They should be communicating better though. Oh well.

I have a GT350 in SoCal as well, and I just ordered the kit. I think it's a great benefit since we only ever get 91 octane, and we have the ability to hide it for warranty purposes. Let me know how you like yours! I should get mine soon.