I did this mod tonight and I also believe it actually makes a difference to smoother running; no flat spot, and a bit more oomph down low.
I'm in the "why didn't I do this ages ago" camp!
KB
RobM, the difference between before & after an EGR mod is marginal in best - you may not notice the slight power rise, or economy improvement, mostly because there's not a lot of EGR going in anyway. EGR is only active in the mid-range and what you SHOULD notice is a reduction in smoke output. Over time, your intake will be slightly less dirty - but you still have both exhaust gas and engine oil entering the intake courtesy of the PCV - the best you can do (legally) is fit a catch can. Even with that, you won't get a dramatic rise in power.
rob macca, have you got 265/75's or 265/70's I ask because when I bought my 3.0 after selling my 2.5 one the second day of owning it I put 265/75's after which it became a slug.
could be the swirl valve closing, if you havn't disabled it.
maybe injection noise or parts cooling down. fuel is turned off under deceleration and with no egr and no egr butterfly it will cool down fairly quickly.
I am sure I can hear a similar noise under deceleration, like a couple of nuts rolling around at the back of the engine, its probably nothing and just the tappets or something.
thats the oneSwirl valve, is that the one where you simply just unplug the brown/red connector?
I run R16/245/70s and have no trouble, just dump the clutch and go. the ute still rides good to for the weight.That's the thing.... I've still got the original size tyres fitted - 255/70/16 for a 2002 ZD30 model. I reckon I'd be in real trouble with 265/75/16 fitted.... might have to run 2 sets
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