loss of boost
#1
loss of boost
hi, probably been asked before, but i feel my loss of boost is different to other horror stories on here. my car runs sweet, but the boost is just minimal.ive checked all hoses, cleaned the solenoid, and ordered a new maf just incase. if the maf doesnt cure it, and i buy a new actuator and that doesnt cure it,what else could it be?iive also taken the hose off the actuator and blocked it up, just to see if it boosted stupidly, and it did, although i dont know what this means thanks in advance
steve
steve
Last edited by chaz81; 26 May 2010 at 07:23 PM.
#3
thanks for that. i had it at the garage yesterday just to get all that checked, and theres nothing a miss anywhere.but as i say, took off the hose from the actuator, so the turbo was running at maximum, and it were boosting like a good 'un,just dunno what this points to though.the guy at the garage said, even though no fault codes, he thought it were worth changing the maf, probably wasted me money like
#4
Scooby Regular
iTrader: (13)
That w/g test is proving that the turbo itself is spooling correctly (based on your anecdotal evidence), so the turbo's CHRA and/or w/g penny flapper isn't broken/knack'd in any way.
It could well be, then, that the actual w/g actuator's spring or diaphragm is weak/broken/split etc...
It could well be, then, that the actual w/g actuator's spring or diaphragm is weak/broken/split etc...
#6
Scooby Regular
iTrader: (13)
I'd be inclined to get a replacement w/g actuator for your particular turbo model and try that. They can be had on eBay 2nd hand every now and again (or try classifieds on here, etc.)
Which MY/variant do you have (or turbo, if you already know)?
Which MY/variant do you have (or turbo, if you already know)?
Last edited by joz8968; 26 May 2010 at 07:38 PM.
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