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Engine Specific Info and Questions => mTDI Mechanical TDI Conversions => Topic started by: rodpaslow on November 09, 2015, 08:18:07 am
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My car, a 1.9 tdi Golg with a 2052 turbo and modded 1.9 pump body with all 11mm internals from a Land Rover (I think it was a LR 300). It's running very well most of the summer except for hesitation under mid to light load. If I roll on the throttle from 2000 rpm fairly fast it doesn't do it, but if I back off slightly it will start to sound like it's missing. I've got .250 Hflox nozzles, new this spring and it's got a lift pump feeding the pump.
I have some smoke under full throttle (I thiink it's okay -maybe LDA needs to be backed off a bit). I do have the governor mod with this pump as well.
I'm just needing some direction - this hesitation - will timing make a difference or is it likely a pump setting that's off?
Any help in heading the right direction is apprecieated.
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it only happens with engine at operating temps. I backed off the lda a couple turns and it seems better driving to work this morning. Have to test it the rest of the week and see if it was just over-fuelling at 10-15 psi boost. (more lda spring pressure)
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Seems the more I back it off the better it accelerates once the boost starts. Too much fuel is not a good thing either....was only getting 1250 to 1300° F on egt even with way to much fuelling. Hestitation is gone.