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Old February 24th, 2018, 17:53   #1
Join Date: Oct 2017
Location: Los Angeles, California
TDI(s): 2000 ALH
Default TDI chugging/Choppy Idle

My 2000 TDI ALH seems to chug or idle choppy when I am braking with the clutch in and coming to a stop or sometimes just at idle. The piece I'm pointing to in the picture is loose and wiggly. Also in the other picture is a black zip tie and I'm not sure if that is factory or was put there. So question is where can I find the piece and should I get the whole piece from the brake drum to the Engine.
Also what is the correct battery for our cars?
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Old February 24th, 2018, 18:53   #2
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Photobucket doesn't work (unless folks PAY for it), so, for most we're still blind here... Upload to this site's Photo section or some site that provides free hosting.
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Old February 24th, 2018, 20:04   #3
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Fuel Economy: 34 Towing 42 Average 53 Highway

I couldn't see the pictures. But besides that, it sounds like it could be the injection quantity adjusted too rich. It could easily be checked with VCDS.
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Old February 24th, 2018, 20:56   #4
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I had the same thing with my ALH when I first got it. It would idle rough when slowing and as soon as I came to a stop, it would smooth out. Eventually I found this forum and found out about the IQ adjustment. Adjusted the IQ and the problem was fixed.
1999 New Beetle TDI - Bosio 1019's, Malone S4, Skid Plate, Neuspeed Sway Bars, KW V2, 19's BBS-CH, Spyder LED's, EGR Delete, VF Mounts, South Bend Clutch, B&M Shift Kit, VNT17, Custom Side Mount Intercooler, HPA Big Brakes 355mm Ft/335mm Rr, 2.5" Custom SS Straight Through Exhaust, Colt Stage 2 Cam, 3 Bar Map.
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Old March 2nd, 2018, 06:28   #5
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Location: Conkud, New Hampshiyuh, USA
Fuel Economy: pretty freakin' good.

So you're gonna need to find someone with a VCDS that is willing to plug into your car and find out what the IQ is currently reading. From there, after reading up on it here on this site, you will be able to adjust the IQ using the hammer mod technique. Oh, and you'll need the correct torx bit as well as the magic triangle security bit/socket for the security bolt on the top of the injection pump. Without that, you'll just break stuff, and broken injection pumps are pricey to fix.

That is assuming that it in fact is the injection pump IQ that needs an adjustment. So what is the problem with the zip-tied item? Like above, until we can see it, we can't hope to help. Please, look at posting photos on this site.


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Old March 2nd, 2018, 06:29   #6
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Search for "slow down shudder".
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