LLY: LLY Banks exhaust brake issue.

[Bustedknuckles]

A friend is running into a issue on his 05 lly with a banks speed brake. When he uses the brake it occasionally sets p0234 and losses power, basically because it is seeing 7 psi of boost and the computer knows it shouldn't. Banks wasn't any help and we were wondering if anyone has run into this before? Can it be fixed with tuning? TIA

 

[Trevor79]

I had some issues with mine. I had to unplug all the connections and pull all the pins out with needle noses, then plug everything back in. It stopped giving codes. Every now and then it didn't seem like it would turn on though. Also had a shift indicator problem but that was moister in the trans plug of the speed brake. Mine was on a LMM and removed for a dealer visit. Now it's going on fleabay cause I don't have the ambition to put it back on.

 

[redws6rocket]

if you guys had efi live you could change the parameters to set that code, or just keep it from reporting it.