Bad E85 cause limp mode?

[Corroeric]

Can bad E85 cause the car to go into limp mode? My tuner is saying its bad fuel but i tested it before pumping and tested at E83.

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[Proshop]

Check engine or wrench light? If check engine what code(s)? Did you run e in the tank before if so what did it test?

 

[Corroeric]

It had a check engine light and while I was at a stop light the wrench light came on. Been running E85 for the past couple of weeks. It tested at E81 last fill up.

 

[Proshop]

It had a check engine light and while I was at a stop light the wrench light came on. Been running E85 for the past couple of weeks. It tested at E81 last fill up.

Highly doubt it’s bad gas then.. did you check to see if any new codes popped up since cel was already on? Have you disconnected the battery and reset the computer?

 

[Corroeric]

Yeah I was getting code P061A and P061B. I was told it was my cai and I replaced it and now its bad fuel. I havent disconnected the battery.

 

[K4fxd]

It's your tune, your torque tables are wrong.

 

[Corroeric]

I'll tell my tuner to check those out and see what he says

 

[K4fxd]

The easy fix is to raise the allowable error, the correct fix is to tune the tables.

 

[Corroeric]

The easy fix is to raise the allowable error, the correct fix is to tune the tables.

He said it’s not the torque tables. He runs same tq tables on every other car with same set up

 

[Black Coyote21]

Can bad E85 cause the car to go into limp mode? My tuner is saying its bad fuel but i tested it before pumping and tested at E83.

When does it go into limp mode? During WOT pulls? lower in the gears or usually up top will it kick the light?

 

[Corroeric]

When does it go into limp mode? During WOT pulls? lower in the gears or usually up top will it kick the light?

It goes into limp mode when I'm at a light. Never at WOT or while moving.

 

[Proshop]

Just some FYI threads for you!

https://www.mustang6g.com/forums/threads/p061b-code.82622/
https://www.mustang6g.com/forums/th...mp-home-p601a-error-code.164337/#post-3350487

 

[K4fxd]

Most times it's in the torque tables. I hate it when tuners say every car I tune runs XXX and yours should too.

He should ask for a data log with torque errors logged. If he has I apologize.

 

[Corroeric]

Most times it's in the torque tables. I hate it when tuners say every car I tune runs XXX and yours should too.

He should ask for a data log with torque errors logged. If he has I apologize.

He didn't ask for a torque error log. He did ask for an idle and rpm climb. While I logged the car it went into limp mode again and was able to capture it on log. Hopefully he can see the issue.

 

[K4fxd]

If you have the ability to log, log IPC wheel torque errors.

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