wildracer

hey guys i have a new code my 97 z28 is given me... i just replaced the evap cellaniod witch that code was p1441... cleared that one and all is good.. now i have this code of p0441????? can anyone tell me what that code is and how to go about fixing??? this site focks so far every time i need help you guys are right there and right 100 % thanks for all the help ...

n2ceptor

A code P0441 could mean one or more of the following has happened:

Bad vacuum switch
Broken or damaged EVAP line or canister
Open in PCM purge command circuit
Open or short in Voltage feed circuit to Purge Solenoid
Faulty purge solenoid
Restriction in EVAP solenoid, line or canister
Corrosion or resistance in purge connector
Bad PCM

Injuneer

The EVAP solenoid may not be what set P1441. It could have been due to the vacuum lines being switched at the solenoid. If it was the solenoid, it probably was plugged by carbon particles, and could have been cleaned out, not replaced. It could also have been a problem with a faulty vacuum switch.

You need to make sure the lines are not plugged by carbon particles, as well. The code indicates the vacuum switch is not detecting a vacuum, when the solenoid is commanded open - hence the list of possible causes in the post above.

Some things to keep in mind.... if it was an electrical fault in the solenoid, there would also be a code P0443, so that's not a likely cause. And, the vacuum is pulled on the system by the port on the side of the throttle body, so loss of vacuum can start at that point, be caused by a broken lione from the solenoid, or a broken/leaking line from the solenoid back to the canister.