NIKDSC5

iTrader: (10)

I believe you're correct. In which case pending mine comes out looking fine, as yours, you down for a heads up trade? This won't be till probably may at the earliest so you know....

hefftone

If you do that you'll probably be tuning twice, where as if you simply add the flex fuel sensor ($80) and a wire you can do if all at once.

It makes a hell of a lot more sense, pm leanpocket.

NIKDSC5

iTrader: (10)

I assure you it will take way more than a 80$ sensor and a wire. Will have to tune twice anyway as there will
Need to be two maps.

hefftone

Between you and and person who successfully did this on an 04 V, i'll go by the latter. Good luck.

NIKDSC5

iTrader: (10)

So you truly believe it's just a simple 80$ sensor and a wire? That's what you're telling me? And you believe this?

NIKDSC5

iTrader: (10)

After talking with Lonnie he recommended doing a flex fuel system as well. So...yay. Guess I will look into going that route too.

Naf

iTrader: (1)

Why is your milage cut so far down?

Yes you are using FI and yes you have other upgrades, but at 2000rpm you are not at full boost nor will you be at the edge of performance.

I feel your tune is too rich and needs a tweak, with performance also come efficiency. The more efficient you make your engine the more power you get out of her...

Also get some microlon and treat your engine as well as your drivetrain, it will give you 25% plus on your milage

NIKDSC5

iTrader: (10)

16mpg and 17 gallons=272 miles. That's what I average. Could I stretch that further? Sure. But with what fun? Get your car up and running and tuned and put three tanks through it then report back on what avg mpg you're getting. I had one of the best in the business tune my car.

Naf

iTrader: (1)

Just waitin on my ecu and then i will start to do as you commanded.

My tahoe gets about the same milage as you. Which for metric ppl is about 14.7ltr/100km

In order to get 400mi out of your tank you have to get it better than 23mpg. Thats a tall order.

Why not add snow performance's mpg kit? I have it on my tahoe and its great, brings my iat from 52c all the way down to 24c. Thats 127f down to 75f thats real numbers and only on a 5.3ltr engine. Added bonus is when you are acceleratin above cruisin speed it helps boost your octane charge and cool your air charge...

cts-vls6

iTrader: (7)

I also want to do flex fuel system but i don't know how the flex fuel sensor will work on the 411 ecm.

Naf

iTrader: (1)

The sensor will work on the e67 or 06-07 but not the 04-05.

There is a wire you may add to the j connector so you may have an accurate ethanol reading for timing and fuel.

gtistile

I'm late to the party here but go E85 and never think twice. If it ever becomes unavailable here I will no longer modify cars.

That said, my mileage sucks bad. With a huge pump, 85% ethanol and 2250cc injectors I average around 7mpg. But that's an extreme case I think haha

runsfromdacops

the p59 (04-05 cts-v) will do flex fuel but not with the ctsv OS.
the 411 is the older red/blue style not what is in the V

NIKDSC5

iTrader: (10)

Wait, break that down Barney style for me. What will I have to do in order to run the corn?

Would an 06-07 OS be plug and play? I'm sure the reluctor and knock sensors would be an issue. I have done zero research on this so far so I apologize for asking to be spoon fed!

I pmed lean pocket and am waiting for a reply. Past that I have learned the A1000 pump will likely not meet my needs. And the Weldon pump taking its place is $$$

runsfromdacops

no, 04-05 van,truck and suv OS is what you need. same pcm you have now.

why spend big $$ on a pump that is super noisy and probably more then you need anyway\
i have twin 044s and plenty of fuel, im sure that would be cheaper and last longer then a big single

Naf

iTrader: (1)

You can do it plug and play for a 06-07 ecm upgrade, but you will need to buy the engine harness, ecu, and throttle. You will need to then move some of the pins on the engine harness to match the car harness, add a harness for the throttle and obdii communication.

NIKDSC5

iTrader: (10)

No.

Yes.

As for the fuel pump I'm going by what Lonnie recommended I do. I mean, he is the fueling guru right?

I would be curious to know more about your fuel system though. I have seen the cell when you sent me pictures but never really asked for too many details.

The pump isn't all that bad and I nailed down that im going with the Weldon DB2025-A pump at 760$ so what, 260$ more than the A1000 for a way better quality pump?

Another problem I have is the fuel cell. I can't really go with like the setup you have as I need a cell that is SCCA approved. Which adds serious $ to the equation.

-Ross-

iTrader: (2)

Meth is pretty good until its pump takes a **** while you're WOT on the big end.

Naf

iTrader: (1)

That why you use the meth to only cool the chargin air and when it ***** out the iat goes back to normal and you dont have to worry about the ecu runnin too much timin.