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Hard cold start on E85

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Old 06-21-2011, 06:34 PM
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Why aren't you running a modified 5.3L LC9 calibration?
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Old 06-21-2011, 06:45 PM
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Originally Posted by CalEditor@PCMCalibrators
Why aren't you running a modified 5.3L LC9 calibration?
I guess my tuner didn't opt for that? Will that work on a highly modified truck?
Right now I'm tuned for E85. My fueling is pretty good. .78 Lambda at WOT.
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Old 06-21-2011, 07:08 PM
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Originally Posted by scooter k
I guess my tuner didn't opt for that? Will that work on a highly modified truck?
Right now I'm tuned for E85. My fueling is pretty good. .78 Lambda at WOT.
yes
I work on E85 trucks everyday
sand me your VIN and I will look at your info and if I have time I will build you a custom calibration
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Old 06-21-2011, 07:56 PM
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Originally Posted by CalEditor@PCMCalibrators
yes
I work on E85 trucks everyday
sand me your VIN and I will look at your info and if I have time I will build you a custom calibration
You really want to get involved with mine? There is nothing stock on it except the ECM, TCM, wiring, and attaching bolts.........
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Old 06-22-2011, 09:37 AM
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Are you the one tuning it?
If so I will lend a hand
Are you using HPT?
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Old 06-22-2011, 10:48 AM
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Originally Posted by CalEditor@PCMCalibrators
Are you the one tuning it?
If so I will lend a hand
Are you using HPT?
No I didn't tune it.
I'm trying to figure it out on my own now.
Yes on HPT
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Old 06-22-2011, 11:01 AM
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Originally Posted by scooter k
No I didn't tune it.
I'm trying to figure it out on my own now.
Yes on HPT
Send me your VIN and VCM ID
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Old 06-29-2011, 10:57 AM
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Originally Posted by scooter k
I'm running E85 and truck has been tuned on it. Only problem I have is that it starts extremely hard when cold. I've HPT what can I change in the tune to help? Starts fine hot.
E-85 by nature doesnt start as nicely as gasoline does. This is why there are different grades of E-85 depending on the season. This is compounded by performance cams which decrease dynamic compression.

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Old 06-29-2011, 11:19 AM
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Originally Posted by hog
E-85 by nature doesnt start as nicely as gasoline does. This is why there are different grades of E-85 depending on the season. This is compounded by performance cams which decrease dynamic compression.

peace
Hog
Hey Paul
Do you have VDF's for 2004+?
If so you will need one of mine or if John ever gets around to it 1 of his.
We have added over 20 Ethanol/FlexFuel Parameters. I have another 40 to add that really don't need to be added. They are for diagnostics.
Anyway when you see how GM does it you will understand why the factory calibrations run so well
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Old 06-29-2011, 05:58 PM
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Originally Posted by CalEditor@PCMCalibrators
Hey Paul
Do you have VDF's for 2004+?
If so you will need one of mine or if John ever gets around to it 1 of his.
We have added over 20 Ethanol/FlexFuel Parameters. I have another 40 to add that really don't need to be added. They are for diagnostics.
Anyway when you see how GM does it you will understand why the factory calibrations run so well
Sent you an email and PM'ed too.............
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