Did they solve the DI issues?
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From: Australia
Did they solve the DI issues? So did GM solve common direct injection issues?
Like valves coated in oil and carbon build up from not being washed with fuel like regular injection.
Like valves coated in oil and carbon build up from not being washed with fuel like regular injection.
Thread Starter
TECH Apprentice
Joined: Jan 2011
Posts: 309
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From: Australia
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Meth FTW!!! We've done it in a couple of DI engines with good results. A 275k mi GTI still running 20+ lbs of boost with solid pulls all the way to redline. It should help with valve buildup on the NA engines as well
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No, the buildup is from the PCV system putting all sorts of crap back into the intake without any fuel/injector to clean off the back of the valve.
The Ford ecoboost has it the worst it seems. But that's mostly crap collecting in the intercooler.
Catch cans are good for most engines but should be a requirement on a DI motor. They don't install one though because they don't like the idea of an owner having to empty sludge out of a car under warranty.
The Ford ecoboost has it the worst it seems. But that's mostly crap collecting in the intercooler.
Catch cans are good for most engines but should be a requirement on a DI motor. They don't install one though because they don't like the idea of an owner having to empty sludge out of a car under warranty.
it may be where they drain it on an oil change (I would certainly prefer that)
... still digging for more info.
Last edited by MIGHTYMOUSE; Aug 18, 2015 at 08:45 AM.
I at least at BMW with there direct injection have seen some pretty good progress compared to the earlier DI motors from 2007. Not sure how this stands with other manufactures.