Idling issue?

[mb1907953]

Could be isv, though you are obd2? So could be throttle body/tps again.

I have a working one going mega cheap

Yeh it's an OBD2. I'll do some more diagnostics and get the dumb vagcom on their and then get back to you

[drucejnr]

Still going well? Do you actually think it worked? I've been told you can only do an alignment with a VAGCOM... So never tried the manual method!

I had an issue today when I started the car cold and it went straight to 600rpm, like just missed its usual 1500rpm warm up rev. For about 10 minutes after that, every time I disengaged the clutch, it would drop super fast to like 550 rpm and almost stall and then pick itself back up to 610 or 620. Anyone got any ideas? Seems like a throttle issue to me, could it be related to the TB or TPS? Just weird that it went away when the car warmed up.

Also, the aircon wasnt working whilst it was doing this. I wonder if the compressor is on its way out.

Still going strong mate after the manual realignment. It definitely has worked but I'll keep an eye on it over the next few days.

Car has been sitting in the cold all day, started her up at 7:30 this evening and she was on her cold start idle of 1200 for about a minute before dropping to 800. Drove her around quite tamely until the engine and oil got to temp (had ac/heat running), decided then to push her a bit and it didn't stutter, dropped RPM's properly when shifting up (instead of staying high) and was even better on the down shift.

Well there are quite a few posts on Vortex saying that the ECU can run the adjustment itself, and it did in my case but if you have a VAGCOM, just go ahead and run the codes/align the throttle that way - would take less time (I think, as the manual method takes roughly 1/2 and hour).

Just remember, if you are going to go down the manual route, when you get to the "start engine and let it sit for 10 minutes" literally do just that. It'll run the idle/throttle at different stages; after about 4 minutes it'll get to this weird stage that'll make the car idle at roughly 500-600 and make the car shake but it's just one of the stages. Shat myself when it did it but it's the norm.