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While CrD ZD30 can run at higher boost than previous Di and for sure can run hotter EGTs (up to 700°) something is amiss if a tuner needs to compensate with increased boost for what appears to be too much fuel being injected. (black smoke) How's fuel consumption?
Also I'd like to know how did the tuner raise boost to 20 psi. As far as I know engine ECU is fully in control of boost, it also uses EGR to control it as well. So e.g. if one blocks egr than boost levels are much higher.
Few things spring to mind, is VNT turbo working correctly and just in case that trim codes for injectors stored in the engine ECU are correct?
Cheers
Last edited by Rumcajs; 14th June 2012 at 11:04 PM.
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