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Sep 20, 2012Explorer
NinerBikes wrote:
Here is something for you to thing about: Why does Bosch pull all the injectors too for rebuild when the HPFP fails, when VW claims damage from water in fuel? Or gas ingestion /misfuel, or fuel is contaminated? Simple part, no? Something in that system, with high pressure, high heat in the cylinder head, and bursts of voltage run through crystals does NOT play well with water turned to steam, or the instant cooling effect of water, or the conductivity of water.
Figure it out, Bosch.... we are waiting for the HPFP's to fail on the Passats.... so far, 2 failures, one may be a misfuel when an adblue pump was R&R'd on a gals car in Atlanta, GA on TDI club. Some folks believe it was dealer induced?
When the HPFP fails, metal particles likely will damage the injector ceramic ball valve.
Interestingly, the high cost of the Piezo Electric injector is causing a comeback of the solenoid valve --- a lot cheaper to make.
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