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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old March 13th, 2018, 18:33   #16
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Join Date: Feb 2003
Location: Niceville, FL
Fuel Economy: 53/48/42

Yep -- they should read low but not zero ohms. Usually when they fail they fail open, so if you get an infinite reading on one or more it's definitely dead.
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Old March 14th, 2018, 00:20   #17
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Location: PNW

Can get a GP code if there's any significant difference in resistance. It might affect actual performance, though to what extent would depend on resistance differences.

Here's the ultimate GP thread. In it I included a "trick" of stuffing foil on top of a glowpulg if it's resistance is good, harness connection clean and has requisite voltage: the connectors slowly expand such that the don't clamp on as tight as they should, causing a weak connection.
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Old March 14th, 2018, 10:08   #18
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Location: CT

Thanks gents for the info, I do have a multimeter somewhere and will check the resistance out over the weekend. That thread is great, really this whole forum and its members are awesome, I don't think I'd even own this car let alone do work on it without TDIClub!

The Meguiars Super Degreaser I ordered isn't coming in until Tuesday unfortunately so won't have a chance to do some serious cleaning this weekend. But at least I can put some soapy water and check GP resistance... oh yeah, and try to track down the smoke source too, lol.

Interesting tip with the foil UhOh. Maybe that's the source of the P3000 code

Will report back
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