Question about Volkswagen Cabrio
Hi. This means throttle body needs cleaning or replacement. You may try this torubleshootnig first before ding anything. This works to some VW vehicles. Open hood and driver side door . Disconnect the negative terminal from the battery and wait 15 minutes . Reconnect the terminal and insert your key into ignition turn over to on position but do not start car , you should be able to hear the TB throttle body make a noise . This is the TB throttle body self aligning itself , wait until the sound ends . Close hood close driver side door and start your car , problem should be solved .
Posted on Sep 08, 2010
MANY THINGS WILL SET OFF CODE 1582 - IDLE ADAPTION AT LIMIT. POSSIBLE CAUSES AS FOLLOW 1.CRANKCASE OIL IS DILUTED NEED OIL CHANGED 2. FUEL INJECTORS ARE WORN. 3.COMPRESSION RATIO IS LOW. 4.THROTTLE VALVE CONTROL MODULE IS FAULTY. 5.LEAK DETECTION PUMP HAS FAILED. 6.EVAP CANISTER SYSTEM HAS AN IMPROPER OR BROKEN SEAL. 7.EVAPORATIVE EMISSION EVAP CANISTER PURGE REGULATOR VALVE 1 IS FAULTY. 8.HOSES BETWEEN THE FUEL PUMP AND THE EVAP CANISTER ARE FAULTY. 9.FUEL FILLER CAP LOOSE. 10.FUEL PUMP SEAL IS DEFECTIVE FAULTY OR OTHERWISE LEAKING. 11.HOSES BETWEEN THE EVAP CANISTER AND THE FUEL FLAP UNIT ARE FAULTY. 12. HOSES BETWEEN THE EVAP CANISTER AND THE EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE ARE FAULTY. 13. ECM HAS FAILED.
Posted on Aug 31, 2010
1582 Common error code.The throttle body needs to be cleaned.If you follow your air intake pipe from the left hand side of the engine bay where it creeps up to the manifold, this is where the throttle body is.
Just take off the air intake pipe from the throttle body and open the butterfly valve and clean the inside of your throttle body. The error code you get is typically from a build up of carbon that is preventing the valve from either openeing or closing all the way.
You will want to use carb cleaner. Open the butterfly valve and spray away and use a Q-tip or whatever will reach inside. When you clean the throttle body, do not even remove it from the manifold, you just held the valve open and spray inside and clean.
After cleaning the throttle body (TB) you will never have to do a idle adaption with the VAG, just leave the negative cable to the battery off for 20 minutes to reset the CEL and allow the car to relearn the idle when you put the neg cable back on.
But if this is not helping then the problem can be,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.This all possibilities needs to be checked.Check and replace the faulty component.
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Posted on Aug 31, 2010
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Posted on Jan 02, 2017
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