Engine/Transmission (1998.5 - 2002) Overboost code setting

[andrewkoperdak]

Fellow CTD owners. I put in a boost fooler some time back and have not had any problems until the other day. This made me wonder how the fooler was working. I set the overboost code 0234 when my boost hit 31 PSI. Do all boost foolers simply move the trip value by 10 PSI. Stock trip is supposed to be around 21 PSI if I am not mistaken. The check engine light came on while I was getting into it climbing a hill in the Smokey Mtns ( un-nerving as I was on a 6000 mile roadtrip) and I hadn't made the phone call to find what the code meant yet.

Any thoughts?

 

[Alan Reagan]

Don't know if you have a box (didn't see it in your signature), but sometimes the box will cause the MAP sensor voltage to go to an overvoltage/undervoltage condition and set the code.