05 m7 bogging problems

[dwayne2960]

i have a 05 m7 that on WOT it only revs to about 6500rpm and only surges to 8000 once in awhile but if i let it idle for abit then punch it, it revs to 8000 for only a few seconds then returns the normal bogging. it has a d&d pipe and y-pipe wit a mbrp stinger, timbersled intake, v-force 3 reeds..

 

[rigrat]

Check out the M7 dropping cylinder threads. Finally got my M7 figured out, it was a powervalve sticking. Good luck.

 

[slomo]

@6500 rpm your power valves start working i would take them out and clean them then check to make sure they have not popped off the servo motor