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I filled up yesterday, scanned & 20%. I cleared it & was at 0, I made a file that is in my other computer. I got 13mpg at an average of 70 in 2WD, not driving aggressively.

Edit, file uplaoded

Great idea. I'll be filling up Thursday night, leaving for L.A. About 2am. I have 3/4 tank and won't be driving much before then. I'll run the scan on the freeway for 20 minutes or so and fill up...

I'll be bringing the laptop with HPT & TS so I can keep track, the problem is like a water small leak you don't know until you get the big bill.

Guess I'll have to check the ethanol @ each...

I didn't take a new read while it was at 2.x%. I just know my Tuner said it was way out when it was 30%. My concern is if I leave it alone I'll be back to 30% and a mess again & am hoping to get it...

Thank you. The tune was done on a dyno by an experienced tuner. He tried the steps in your other thread Wynnded quoted a few months ago.

I have had P0101 sporadically and poor MPGs so sent him a...

Yup, no joy :(

I have a flex '13 Sequoia, Magnuson SC, Deaschwerks 300 pump, 5-0 750 injectors and RC-F throttle body. I bypassed the flex switching valve & am having issues with the truck thinking it has E85...

Any indication what the upgrade from a MPVI2+ price will be?