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Check engine on with code p1582 - Cars & Trucks

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The code p1582 means Idle Adaptation at Limit. Know more about the car diagnostic tool to check the car.

Posted on Nov 02, 2012


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Posted on Jan 02, 2017


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I have a 2003 S-type jaguar that goes into a limp mode and stops running then the engine system fault shows ,the parkbrake fault and DSC not available also shows. Diagnostic showed codes PO121,P1582??

code p 0121 is associated with the throttle position sensor and accelerator position sensor
causes are from cable adjustment --throttle position and accelerator position sensors
code p0533 refers to ac refrigerant pressure sensor--high input== causes --ac pressure too high (cooling fault -condenser fan not running at radiator-- too much gas --pressure sensor
p 0105 refers to map sensor / barometric pressure sensor --circuit malfunction===causes wiring--- map sensor --baro sensor ECM
code p0566 refers to cruise control master switch== causes --control switch , ---ECM
code p1582 refers to electronic throttle monitor data available which will be associated with the p 0121 code and faults

Jan 08, 2017 | Jaguar Cars & Trucks

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I have 2000 VW jetta gls 2.0 and im getting DTC code p1582

Found this on the vw forums:
I've had the p1582 code for a couple weeks now no other codes just the one. My car was getting poor gas mileage and performance suffered a little, but not too significant. I've done the basics (cleaning tb, reseting tps, cleaning maf) to try and clear it, but nothing helped. So what should I do now? sly.gif
The p1582 from my understanding means, that the computers limit to adapt to my idle's air fuel ratiohas been reached. So at idle my engine is running too rich or too lean for my computer to keep up with. I took a look at my short term and long term fuel trims to find that my engine was running very rich at idle, knowing that I need to solve the problem before my cat is damaged and I would have to buy a new one.
Ok so what would cause a rich mixture at idle only and only give me one code? Well since I only had one code I assumed all my comprehensive components were fine, so I moved on to looking for vacuum leaks.
At idle the throttle should be closed and no air should be getting into the engine causing a large amount of vacuum or an absence of ambient pressure (outside air). So this means "unmetered" air is getting into my engine with the throttle closed, causing my computer to try to adapt to all this air by leaving the injectors on longer adding more fuel.
Okay, so where is all this air coming from?
I tried my best to find any possible vacuum leaks in the engine bay, but finding vacuum leaks isn't my speciality. So one of my buds who owns a shop said he would hook up a smoker to it. These smokers are amazing which is why they cost 3,500 or more, not too many people have access to these. We disconnected the brake boosterhose from the throttle bodyand attached the smoker hose to the vacuum port, turned the smoker on and watched........ was no smoke coming out of any unusual areas of the engine bay. So at this point I'm getting kinda frustrated, until I noticed smoke coming from the passenger side of the car infront of the rear tire. We lifted the car and there it is a huge leak in my evap system. The leak was about three or four holes punched into a plastic vacuum line, yup plastic banghead.gif, coming from my fuel tank to the evap purge valve. I cut the hose and added a rubber hoseto connect the two ends that were cut and bam! no more vacuum leak. After three consecutive trips the code was cleared.
Now I'm not saying this is the solution to any p1582 problem, you might get another code thats paired with the p1582 and that would be helpful because it can tell you which specific sub system is causing the p1582.
In my case i only had the one code which isn't very specific because the vacuum leak didn't cause any components to send abnormal inputs to my computer until the computer could no longer keep up with the engines air/fuel mixture at idle.
I hope this was helpful to at least one person, if you have any air/fuel problems that might be the cause of a vacuum leak I would definitely check out those plastic vacuum hosesthat are UNDER the car EXPOSED to the HAZARDS of the road. biggrin.gif

Mar 04, 2015 | 2000 Volkswagen Jetta TDI

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Why is engine light on ?

The 506, 171, and 1582 codes could be due to carbon buildup in the throttle body. Use throttle body cleaner to remove the carbon build up and retset codes. The 0440 code is the evap system code. This is usually a loose or worn out fuel cap.

Aug 23, 2014 | 1999 Volkswagen Beetle

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What is fault codes P1582

Type: OBD P1582

That is how you look up codes

Aug 05, 2014 | 2002 Volkswagen Cabrio

1 Answer

P1582 jaguar s type

the 1582 code is a flight recorder code meaning that at some point one of the following has happened: the inertia switch has been triggered,throttle body signal has triggered the limp mode,the engine starts but stumble and then shuts off,or engine fail to start,or a engine stall has occured.This is what causes this code.If the issue was resolved,clear the code becuae it can become permanent and although the car will run fine the code will be there without a mil showing.

Mar 21, 2014 | 2003 Jaguar S-Type

1 Answer

Jaguar xtype code p1582 how to remove

P1582 - EDR (Engine data recorder) can not be remove with a reader has to be taken to the dealer.

Feb 03, 2013 | 2003 Jaguar X-Type

1 Answer

Flight recorder data is stored.electronic throttle monitor data availabe code p1582

1 Inertia switch activated

2 Throttle Limp Home mode

3 Engine starts and stumbles

4 Engine fail to start
5 Engine stall

If none of the five conditions occur, check: Inertia switch to ECM circuit:

short circuit to B+ voltage Inertia switch failure

You can check the Inertia switch status on the Instrument cluster Diagnosis, see

Jan 30, 2011 | 2002 Jaguar X-Type

2 Answers

2002 volkswagon cabrio glx fault code p1582 idle adaption at limit what does it mean and how do you fix

For the Volkswagen cars the Throttle body is actuated by a motor and sensor. The motor opens and closes the throttle at idle to allow more or less fuel in as needed. Over the miles as the car engine ages and accumulates dirt the Engine control unit has to push the motor rod out a little further to allow more air into the engine. The P1582 code is thrown when the motor of the TB is at its end of travel and cannot go any further. If you are VERY technical and DIY with cars you can possibly clean it but its a laborious task. Here are instructions for a Jetta (you have similar engine) and has its dangers for further damage. it might be best to have yoru dealer or mechanic replace the Throttle body and clear the code. The repair will require VAGCOM a Volkswagen software program to recode teh ECU and set timing, mixture, etc after eitehr cleaning or replacement. The lin

Jun 06, 2010 | 2002 Volkswagen Cabrio

2 Answers


DIAGNOSTIC TROUBLE CODE (P1582 TO P1613) DTC, DTC text, Corrective action. SAE, VAG, P1582, 17990, Idle Adaptation at Limit.

Check intake for leaks, and or loose vaccum hoses.

Sep 17, 2009 | 1998 Volkswagen Jetta

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