I have a 2008 2500HD that has me stumped. It will go into "reduced engine power" every few minutes. It will even do it at idle. It isn't throwing any codes.
I have done the following:
cleaned the MAF
Replaced the throttle sensor/peddle
Flashed ECM and TCM with EFILIVE
Logged data when the problem happens
Rail pressure holds well
I still suspect something to do with the throttle position sensors because they do not read 0 at idle or 100% at WOT and they don't perfectly match either.
Mods are:
Air dog 165
Exhaust
Down pipe
EGR delete
PCV
Batmowheel
EFILIVE
Cold side IC pipe
Race fuel plug
Transgo Jr
Anyone out there have any ideas?
I have done the following:
cleaned the MAF
Replaced the throttle sensor/peddle
Flashed ECM and TCM with EFILIVE
Logged data when the problem happens
Rail pressure holds well
I still suspect something to do with the throttle position sensors because they do not read 0 at idle or 100% at WOT and they don't perfectly match either.
Mods are:
Air dog 165
Exhaust
Down pipe
EGR delete
PCV
Batmowheel
EFILIVE
Cold side IC pipe
Race fuel plug
Transgo Jr
Anyone out there have any ideas?