eworkley

I have noticed that of lately when decelerating or shifting gears there is a more prevalant "backfiring" than usual. I know there could be alot of reasons but anthing strike a chord here? Ed


86 930
*slight mods*

PorschePhD

Check the CO, sounds like it may be too lean. The leaner the system gets the more it will do this.

timc930

empty backbox?

eworkley

backbox ? I did fatten up the co a bit and the condition did improve slightly. Stephen, my gas tester should be here by weeks end. Ed

timc930

Sorry, European term. Backbox - rear exhaust box under rear bumper (tail pipes are contected to it).
Emptied mine after hard use (track) and it would really pop on the overrun.