The Test

[88Racing]

Jack worst case scenario is getting the truck reflashed to the current most updated HEX code. Bill informed me that Ford already is already on the 5th update for this HEX. Mine being the first version. Why do I say worst case?
I will have to tell a fib and Bill will have to rewrite the tunes.

Lars

[Jackpine]

Yowtch! I really don't mind the fib to Ford, after all, they DO need to put out a good product, but bummer that Bill will have to rewrite the tunes.

I wonder if he has to do it all from "scratch" or if he can just modify what he already has somehow? My semi-intelligent guess is, he has to start over at the beginning, since I'm sure different HEX codes mean different baseline properties.

- Jack

[88Racing]

I am supposed to try all the other things also and log the resultants. So he can get a base line of what's going on. I also told him that this may take a week or 2 on my end since the truck is not a DD. Wish I could sell or unload 24 gallons of 87oct and put 92oct in to try the 93 canned perf tune again. I was just going from memory when talking to him yesterday. Hopefully the reflash isn't needed and only tweeks to the open loop, only have to be done.

Lars

[88Racing]

Ok

Loaded the 87 perf tow tune last night and also the CO settings.
No more hiccup at 40-50 mph.
The economy meter went up 2 mpg.
Did not go over 70 mph at any time, it was only a short drive.
Guess what?
CC shudder is still there.
Still feel a pull or a drag with the motor.
The shudder is shorter duration and paddlelock doesn't flash on and off.
Bill what are we going to do?

Lars