Code P1582
 

I have just pulled a code P1582 from my 1999 2.0 L Cabrio .The book says Idle adaptation at limit.Does anyone have an idea what this is?

Thanks in advance

RE: Code P1582
 

i have no clue. where, when, how, what, are the codes that come from the car. help me out i have no clue where they come from. this isn't the first time i have heard about them just wondering.

RE: Code P1582
 

almost all cars with computers have what called adaptive stratagy. the PCM (powertrain control module) learns what the engine is doing and make little compensations over time. example: it the engine runs lean, the 02 sensors will let the pcm know and it will richen the mixture until its normal again. your code means that something is affecting the idle quality and the pcm is adjusting the idle and now there is no more adjustment left. possibilies are, running lean due to injectors clogged or vacuum leak, unmetered air leak around MAF sensor ( reads the air coming in) fouled plugs, timing, plugged fuel filter... could also be rich due to plugged air filter, leaky injectors, bad fuel pressure regulator.... you'll need someone with a some knowlegde and tools to help you with this one if your a novice. This type of code is almost impossibe to guess due to the amount of possibilities. "Throwing darts "as we call it in the industry gets expensive!

RE: Code P1582
 

:eek:I have seen several posts on this subject (P1582), but no one ever replies to ever fixing their cars. Some of these posts are quite old. I am sure some of the cars must have been repaired by now!I also have the code P1582 in my 97 Jetta and was hoping some one could steer me in the right direction.....thanx :)

RE: Code P1582
 

As soon as someone fixes the problem, or has fixed the problem...please post here so someone later down the line can look and fix their car...thanx.

RE: Code P1582
 

you need to have the throtle body remaped
did you unhook the battery latley

RE: Code P1582
 

cleaning it out wont do a thing on this problem
the throtle body needs to be recalibrated (remaped)with a vw scan tool not your cheap $50 code readers
i do this all the time and have many posts on it
you see it mostly on battery installs or un hooks

RE: Code P1582
 

well buddy i have made my living fr 25 years working on VW's
i think i know what i am doing

RE: Code P1582
 

Be careful who you talk to swedish, I value JRail's advice and rely on him as such.

RE: Code P1582
 

I'm sorry you feel that way, but there are other sites out there you can go to. I do know JRail and he's pretty smart and knows his info and backs it up.