Quote:
Originally Posted by pimpernell
I don't mean to beat a dead horse, but the shop manual for the 96 model reads as follows:
Idle speed to 2550 plus or minus 100rpms...both flaps should be closed.
From 2550 plus or minus 100rpms, to 3350 plus or minus 100rpms, intake resonance flap opens, and intake manifold resonance flap is closed.
Over 3350 plus or minus 100rpms, both intake resonance and intake manifold flaps are both open.
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Have you ever verified this on your own car? Anyone else?
The darn ping showed up again today and I'm now suspecting my 3/6 valve (or intake manifold flap). But before I go and buy the new controller for it, I'd like to make sure that mine is indeed opening too early. Can anyone with a NA OM606 do the test I mentioned, i.e. in the engine compartment rev the engine to about 1500 RPM then back down to idle slowly and listen for the valve closing (it's quite audible). If no one can do this test for me I might try driving with this valve disconnected and see what happens.
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2004 VW Jetta TDI (manual)
Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL
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