Hey guys,

I just picked up an unlimited chip from Pettit for my Pettit ECU. I'm trying to figure out which of the two chips that Pettit installs I have to swap. There's one that they install on the main board & another on the daughter board. Do any of you know which I need to pull? Thanks for the time!

-Mike with the R1 begging for it's computer back

 

The chip on the main board is for ignition, boost, and boost cut. The chip on the daugter board is for fuel. Which upgrade chip did you get? They should give you both right?

Chuck Huang

 

I already had a Pettit ECU, so I already had the chip on the board. After much research, I figured out that it was the chip on the daughter board that I needed to swap...

-Mike

 

is it the wrks chip that goes on the daughter board and the exe that goes on the main???
does anyone have correct air fuel or five gas ppm levels for a correct rich/lean mixture?
Thanks,

Andrew Wojteczko

 

I just ordered an unlimited chip too and Pettit said you replace both and they should be different sizes, ones wider then the other or something. Haven't looked.

 

OK, I just did mine and Pettit told me the Wrks chip goes on the main board and the EXE goes on the daughter.