Hi guys, I've noticed, since I got my new auto installed, that it runs really rough and "spluttery" when decelerating. I.e when taking off from the lights and under boost a little, then when coming off the pedal, it sounds like the engine kind of splutters/misses a little. Unsure if this is engine or gearbox related as yet. My car is going on the dyno next week anyway, might see if it shows up then. Any ideas on what might be causing this? Cheers, Bozza.

Could be your leads,Have you checked spark plugs and connections in engine bay?

plugs were very black a few weeks back cause it was running rich, but for some reason (maybe cause we changed the O2 sensor), it's leaned out a bit and plugs aren't too bad now. i replaced leads like just over 2 months ago - champion 8mm from repco. So i doubt it's that... Might just wait til the dyno run, hopefully it'll show up then

i know wat u mean about the spluttering dude.. its almost as tho u have to have either VERY LITTLE throttle or FULL throttle hey. there is no like inbetween where it wants to go real good.. confusing the computer or something.. i wish i knew wat the cause of it was aswell.. i think just stock management and poor boost control.

yeah... damn. well i'm definately not going to be able to buy aftermarket management anytime soon I was thinking at first it might be a vacuum prob actually.. cause at idle, my vacuum is about -12 psi, when other ppl i have spoken to is at -20psi, so maybe i might be letting in air somewhere. Although i'm probably on the wrong track there. Some original photos have not been recovered yet.