E85R problem

[MROCGUY]

last week was my first E85R tune from Juggernaut.
i filled up with a solid tested 85. datalogged the idle for 10 minutes, then proceeded to datalog the cruise home via surface streets. i stopped at a store on the way home, upon my return that car would crank, but not start...i tried 3x. i flashed it back to the flex tune and it started right up. Juggernaut said to go back to the E85R tune and try again, the next couple of starts were a bit long, then the starting was fine.
last night, i went to fill up again after work and the same thing happened after stopping at the store. got it started by going to the flex tune.
Juggernaut is not open this week.

any E gurus know what's going on?

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[Cory S]

You’d have to log it and review start up enrichment and lambda etc.

 

[engineermike]

E85 takes a prodigious amount of fuel on crank due to low voc. This must be accounted for in tuning. For the same reason, the cranking gdi/pfi blend must be modified as well and hptuners has these table naming all mixed up so it can throw tuners off.

 

[MROCGUY]

It won't start after stopping after a 15 minute drive after filling up with E85.

 

[Cory S]

It won't start after stopping after a 15 minute drive after filling up with E85.

Will it start with your foot to the floor or half way down?

 

[MROCGUY]

E85 takes a prodigious amount of fuel on crank due to low voc. This must be accounted for in tuning. For the same reason, the cranking gdi/pfi blend must be modified as well and hptuners has these table naming all mixed up so it can throw tuners off.

As soon as Jon gets back, I'll let him know that it happened again.
I'll mention the 2 things you said.

Anything else I need to know ?

 

[MROCGUY]

Will it start with your foot to the floor or half way down?

Nope.
I tried both.

 

[Bluemustang]

Who is Juggernaut? Never heard of them. Lund Racing has generally been the go-to tuner for the Mustangs.

 

[HKusp]

Who is Juggernaut? Never heard of them. Lund Racing has generally been the go-to tuner for the Mustangs.

Hah...funny.

 

[SheepDog]

Who is Juggernaut? Never heard of them. Lund Racing has generally been the go-to tuner for the Mustangs.

By Lund, you meant Wengerd right?

 

[Bluemustang]

Hah...funny.

No seriously... who are they

 

[HAVOC_5.0]

By Lund, you meant Wengerd right?

Wengerd is a different company than Lund.

 

[Cory S]

Wengerd is a different company than Lund.

He knows that. .

 

[HAVOC_5.0]

No seriously... who are they

Remember the "Jug Tuned" shenanigans that happened between Lund and Juggernaut and Alex Flores went live on YouTube about?

He's another tuner.

 

[HAVOC_5.0]

He knows that. .

I read his post wrong

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