VW engine codes P1582 & P0440
09-13-2010, 02:05 PM
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Re: VW engine codes P1582 & P0440
What engine do you have?
P1582 = Idle Adaptation At Limit
Check IAC, MAF and the circuit(s). You could also clean your throttle body to see if that helps.
Not sure about the p0440
P1582 = Idle Adaptation At Limit
Check IAC, MAF and the circuit(s). You could also clean your throttle body to see if that helps.
Not sure about the p0440
09-13-2010, 02:12 PM
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Re: VW engine codes P1582 & P0440
Found this on vwforum
A code P0440 could mean one or more of the following has happened:
* The gas cap is not installed or working properly
* The purge solenoid has failed
* The canister is plugged and not working properly
Possible Solutions
With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
* Inspect the EVAP system for cuts/holes in tubes/hoses
* Inspect for damaged or disconnected hoses around the Evap purge solenoid
* Check and/or replace the sensor
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks
A code P0440 could mean one or more of the following has happened:
* The gas cap is not installed or working properly
* The purge solenoid has failed
* The canister is plugged and not working properly
Possible Solutions
With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
* Inspect the EVAP system for cuts/holes in tubes/hoses
* Inspect for damaged or disconnected hoses around the Evap purge solenoid
* Check and/or replace the sensor
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks
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