Well, i get 7.2 mpg in my FFV Tundra. I just picked it up from a 5 day long dealer visit for rough starts, poor mileage and loss of power. This is the 6th time I've taken the truck in for Flex Fuel related questions.

No doubt someone will chime in a say "I've never had a peoblem with my flex fuel Tundra." While that may be true, can they gurantee they won't have a future FF problem? You know who for certain will never have a Flex Fuel related problem with their Tundra? Guys running non-flex fuel motors. That's it.

Why take the risk? Read the threads. 2014s and 2015s are having the same issues. It is the same motor and flawed ECM as the Gen2s. Just different sheet metal.

 

It's more than just a few guys:

POLL: Flex Fuel Problems

FFV Tundra Rough Start

Another 2013 Tundra FFV Problem

Flex Fuel -Should I Care?

Flex Fuel Rough Start Saga

Flex Fuel or Normal?

DO NOT BUY FLEX FUEL TUNDRAS

2012 Flex Fuel Issues

2014 Flex Fuel Issues

New Member FFV Question

 

I bought one in late December. I'm not worried about it.

GA has a pretty consumer-friendly Lemon Law. I believe many states have one, some have different rules than others.

I suggest you investigate your state's laws and proceed how you feel is best.

 

My mileage has been pretty good on my flex fuel but I sure wouldn't buy another one. I'm headed to my third trip to the dealer because of the flex fuel motor. Dealer has already said fuel pump could be bad because of the problems with the flex fuel motor and Toyota is replacing them under warranty to 60,000. I'm at 64000 so he felt like Toyota would cover it since I've had an ongoing problem. Cost will be over a grand. If they won't cover then I will be forced to replace with a truck that runs.

 

No problems here yet, knock on wood, but I only have 7500 miles, so who knows what's going to happen down the road, I would stick with a non flex truck!

 

No problems with mine, it is lifted so I get 10.2 to 11.0 mpg, was told on here I have a flex fuel problem but I don't buy it. My buddy has a regular crew max lifted, same tires and he gets the same mileage. Non flex fuel...I don't know what I would say my problem is, I don't see any issues with them...

 

You have a 2011 and likely do not have a FFV problem. You have a lift, big tires and probably a heavy right foot. Generally speaking, only the 2012-2015 FFV are experiencing the related issues.

 

Not really a heavy foot, a pile of short distance driving though...thanks for the response....

 

If you have the option, get a non flex. Most people don't have the option available to them (locally).

 

Mine's an FFV and I'm not worried about it, and have had no issues, neither has my one friend with his, which is an older FFV 5.7. Keep in mind the forums have an inherently negative reporting bias, just like all product reviews. It's a lot more fun, and more therapeutic, to post a 1000+word rant about Toyota than to just post "Hay guys, just wanted to mention everything's still great over here!"

Given the choice I would have chosen non-FFV just because it's one less thing to go wrong, but I have 5 years and 60k of warranty, and a lifetime aftermarket engine warranty from the dealer, so worst case I get a loaner for a few days while my dealer fixes it, since it's not a showstopper and is relatively easy to see coming. If it becomes chronic, sell or trade in and get a new truck for not too bad of a loss thanks to good resale. If I were buying used I'd think hard about the non-FFV just because I'd have so much money left over for a blower, and wouldn't know what to do with it otherwise...

 

I agree with the above but if you so happen to be one of those that has FFV problems (which seem to be a HUGE headache if they do occur) you won't really care what percentage of other people have them.

I have a FFV but only because that is all that is offered here. If I had the choice I would have a non FFV and a S/C.

 

I just got mine back from the dealer for the third time because of the flex fuel alcohol density sensor or whatever they call it. They reflashed the ECM and told me that they had to call some Toyota technician in Dallas to get the new program napping that they just released. Said this is the 5th reprogram they have sent out since I had mine in back in feb for the same problem.

 

I have an ffv, without issues...

However, I also have a 2010. I am not sure what they changed or why, but whatever it was seems to be the root cause of their issues.


If I could have had a non ffv I probably would have.

At first I figured with the gov't trying to up from 10% to 15% that the ffv would be better long term in case they did up the alcohol %. Still think that in my case that may be true.

NOW, if I had issues I would think opposite.

I am curious as to how many ffv's are out there without any issues. Not everyone has the issues. I think Toyota needs to just figure out why they are reading higher alcohol numbers than actual and fix it. It could be the software that calculates the reading or the actual sensor/sending unit.

I have checked mine many times and it has always been in the 7-upper 8% max.

Anyone wondering what their % is can buy a bluetooth obdII dongle that plugs into the obdII port and pairs with the phone or tab with torque app. You can see a bunch of useless info, as well as alcohol % and do a few cool things with it like track your travel with google maps and see speed, lane changes even. It is kinda cool considering in total it was less than $30 including the app. Once the app was bought I have transferred it to two different phones with no charges to re-install.

 

Anyone wondering what their % is can buy a bluetooth obdII dongle that plugs into the obdII port and pairs with the phone or tab with torque app. You can see a bunch of useless info, as well as alcohol % and do a few cool things with it like track your travel with google maps and see speed, lane changes even. It is kinda cool considering in total it was less than $30 including the app. Once the app was bought I have transferred it to two different phones with no charges to re-install.

I do the same. For those interested, the adapter below is only $5. I don't have this adapter, mine was like $25, so I cannot speak to the quality but might be worth a shot.

Mini ELM327 V1 5 OBD2 II Bluetooth Diagnostic Car Auto Interface Scanner SS | eBay

 

I had looked at that unit, but bought a $20 version as I had read some vehicles don't communicate through that unit. I use my unit in more than one make of vehicle as I help others try to diagnose cel's at work... It is by no means a great scanner, but does the basic cel readings fine.

 

I have a 2010 57000 miles no problems with my FF. Never been to stealers. I get 17 mpgs stock except a are air box.

 

Anybody know which of the iOS apps will tell us the ethanol sensor percentage? I have a bmw -specific app that I love but obviously that won't work for a yota

 

I use Torque pro

It has a little engine cel looking icon.

Works on pretty much any vehicle I have tried it on, several yota's, gm's and fords.