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    Coil Springs

    Have a 98 Jetta tdi with ~ 420 k miles, and would like to replace the suspension springs. Where can I find the specs of the original springs? I'd guess that VR6 springs might be too stiff, and springs used in a 2.0 liter gas car would be too soft. Whatt'ya think?
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    Learn auto AC

    read https://forums.tdiclub.com/index.php?threads/a-c-recharge.290507/
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    Learn auto AC

    2021 is the hottest summer in my lifetime, which led me to think I should learn to diagnose & service auto AC. Checked the local schools. Four-year apprenticeships only. Nothing wrong with apprenticeships, but there's gotta be a quicker way (already served one apprenticeship, once was enough)...
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    AHU will not start

    Applied +12 to shutoff valve; it clicked lika a good valve. Turned ignition on, Glow Plug & CEL lights came on. Looked for chafed black-white, or any other, wlres. There were none. Replaced relay 109—engine started. It was uncertain and weak until it received fuel without bubbles. Drove it...
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    AHU will not start

    As it's 92 miles away, I'll advance on it tomorrow with ignition switch and an arsenal of tools and check: 1. the wires to the I-pump, esp. the black-white; 2. when cranked, fuel from barely loosened injection pipe; 3. the fuel-shutoff solenoid; and 4. anything else that seeems reasonable...
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    AHU will not start

    Do you mean error codes? Will VAG-COM check error codes on an engine that won't start and is cold?
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    AHU will not start

    1998 TDI, replacement factory motor with about 140 k miles. Been running fine for 7+ years, through last evening. First thing this am, turned the key—it started instantly, which is what it does regularly in warm weather. Just as instantly as it started it stopped, and would not start. Decided...
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    Interchangebility of gear selectors, 02J

    If you know the two 02J gear selectors can be interchanged, it's almost certain that they will both work in an 02A trans…
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    EGR delete

    What part of Washington do you mean, Krash?
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    Interchangebility of gear selectors, 02J

    For more positive shifting, I want to use an 02J gear selector in an 02A transmission. I hear that the 02J gear selector will fit the 02A transmission. However, the 02J used at least two gear selectors—one with ball ends for the shifter cables, and a second with clips to retain the shift cable...
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    Parting out 2002 Jetta TDI GL ALH MK4 car in Bayarea

    If you still have the engine, how much?
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    Source of ABS?

    Where can sheet ABS plastic be found? Modifying an air cleaner box for a conversion and need some ABS… Little can be salvaged from existing boxes. Good ideas appreciated!
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    FS A3 Jetta Hella Ecode headlights fogs, and Euro lightswitch NIB

    Thanks for the pictures. I'd guess the electrical adapters are for the headlights themselves. Do you have wires for the foglights? Do you have a picture of the headlight switch? How does the light output of these lights compare with the light from the original headlights?
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    FS A3 Jetta Hella Ecode headlights fogs, and Euro lightswitch NIB

    May I see pictures of your merchandise?
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    WTB: Water bypass tube, 1Z/AHU engine, PNW

    If you have that pipe and if it's serviceable, how about a picture, please?
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    VW Golf II TDI

    Using an AHU and its ECU. Both from a 98 Jetta.
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    1991 Volkswagen Jetta MK2 Coupe - ALH conversion

    What instruments does this conversion have? And what are the details of the FF Tach Converter?
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    VW Golf II TDI

    Almost a decade ago (30 Sept. 2011), while you were putting a TDI in a Mk2 VW, another member asked if you had been able to make the Mk2 tachometer work. You said that you had, and gave a link to the device you used. I'm doing the same thing and surely would like to get the Mk2 tach to work...
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    WTB: Water bypass tube, 1Z/AHU engine, PNW

    This is the metal tube that goes from the water pump, past the oil cooler, around the head, then to the heater inlet.
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    Bypass oil filter, Mk3 Jetta?

    That makes sense; all the Mk3 diesel filters I have seen are the same size, noticeably larger than the filter for a gas engine. Just transferred a Dieselgeek bypass filter adapter on a 2003 TDI from one car to another. Very little room, and that bypass filter butts against a couple hoses…
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