AndyG, many thanks!
The van and engine is all stock with 121.000km on the meter (75.000 miles), prior owner serviced it regularly according to the service book at qualified service stations.
From your reply I take it that EGR mods are in fact something that
can be done on turbo engines then without having a permanent engine light?
I'll check the engine light and the lever if it pulses and then stops. If so then the mod is already there, haha!
If it's still working though, then I could proceed with the mods according to thread right?
The eBay item, would be nice to try and just send it back if it doesn't do anything. I've heard people running chips on different brand diesel engines, some seem to benfit more, some seem to stay the same. When it comes to the black smoke, am I correct that black smoke essentially is unburned fuel?
So with chip installed, normal driving shouldn't introduce more black smoke than without (if so I could essentially dial a manual diesel pump down instead of up as it's providing more fuel than needed). Then when accelerating hard black smoke could potentially increase, this would be something to just accept and live with as at that stage there's unburned fuel "escaping" before the turbo catches up, turbo lag? Am I on the right track or all wrong?
I've also read (at least when it comes to Volkswagen/Audi engines, one can find a lot of info from tuning community on those ) that you can get rid of some of the black smoke from a chipped VAG diesel engine by:
- Installing an induction filter instead of the normal boxed air filter.
- And blanking the EGR.
Is this just the tuners thinking it looks cooler with a coned filter or is there any truth in this statement?
PS: I read around here on the forum about getting a pretty big noise increase with a cone filter, so I'm not really gonna do that I think as I've tried to minimise cab noise already. BUT, would still be interested to hear whether the statement above with reducing black smoke is true!