Tire Size

[Jackpine]

Originally Posted by Power Hungry

As Lars indicated, just run the engine a few minutes first. Since the PCM is located right above the engine, it'll warm up pretty quick. Ford specs say don't program below 30 degrees, but that relating to core PCM temps. If the engine has been run for a while, it's fine.

Glad we could get the other fixed easily.

Take care.

I'd also have the Gryphon in the house, before your programming session, so it's nice and warm too.

Glad things are squared away!

- Jack

[svt2205]

Great support from all of you for helping with what was my mistake from the get go.

Good to know all the details regarding cold temp tuning. I ruled out being able to adjust things during our 6 months of COLD. Now I've got a work around, if I need to swap tunes.

A big thanks to each of you.

Have a good one
Henry

[Jackpine]

Originally Posted by svt2205

Great support from all of you for helping with what was my mistake from the get go.

Good to know all the details regarding cold temp tuning. I ruled out being able to adjust things during our 6 months of COLD. Now I've got a work around, if I need to swap tunes.

A big thanks to each of you.

Have a good one
Henry

Henry, this was posted in an earlier thread and "approved" by Bill too. If it's cold, it doesn't hurt to have a low Amp charger (about 2 Amps) on the battery anytime you want to change the tunes. It will keep the voltage at the level needed for a proper update to the PCM. Low temperature tends to reduce the voltage output of even a fully charged battery, and this is a "work-around".

- Jack