Code P1441: Evap System Purge Valve Flow 1 Fault
Instructor
Joined: Apr 2002
Posts: 249
Likes: 0
From: Broken Arrow Oklahoma
Re: Code P1441: Evap System Purge Valve Flow 1 Fault (123Gone)
DTC P1441: EVAP SYSTEM FLOW DURING NON-PURGE
Circuit Description
PCM monitors amount of vacuum/pressure in EVAP system by
monitoring fuel tank pressure sensor signal. PCM seals the EVAP system
by commanding the EVAP purge solenoid off and EVAP vent valve on. PCM
monitors fuel tank pressure sensor in order to determine if EVAP purge
solenoid is leaking vacuum to EVAP system. This DTC sets if vacuum in
EVAP system is greater than a predetermined value within a
predetermined time. DTC will set when PCM detects a vacuum in the EVAP
system when purge is not commanded.
Have fun. I hope you have a scan tool like Autotap. :eek:
Circuit Description
PCM monitors amount of vacuum/pressure in EVAP system by
monitoring fuel tank pressure sensor signal. PCM seals the EVAP system
by commanding the EVAP purge solenoid off and EVAP vent valve on. PCM
monitors fuel tank pressure sensor in order to determine if EVAP purge
solenoid is leaking vacuum to EVAP system. This DTC sets if vacuum in
EVAP system is greater than a predetermined value within a
predetermined time. DTC will set when PCM detects a vacuum in the EVAP
system when purge is not commanded.
Have fun. I hope you have a scan tool like Autotap. :eek:
Drifting
Joined: Aug 2002
Posts: 1,317
Likes: 0
From: Lancaster CA
Re: Code P1441: Evap System Purge Valve Flow 1 Fault (best_vette_yet)
DTC P1441: EVAP SYSTEM FLOW DURING NON-PURGE
Circuit Description
PCM monitors amount of vacuum/pressure in EVAP system by
monitoring fuel tank pressure sensor signal. PCM seals the EVAP system
by commanding the EVAP purge solenoid off and EVAP vent valve on. PCM
monitors fuel tank pressure sensor in order to determine if EVAP purge
solenoid is leaking vacuum to EVAP system. This DTC sets if vacuum in
EVAP system is greater than a predetermined value within a
predetermined time. DTC will set when PCM detects a vacuum in the EVAP
system when purge is not commanded.
Have fun. I hope you have a scan tool like Autotap. :eek:
Circuit Description
PCM monitors amount of vacuum/pressure in EVAP system by
monitoring fuel tank pressure sensor signal. PCM seals the EVAP system
by commanding the EVAP purge solenoid off and EVAP vent valve on. PCM
monitors fuel tank pressure sensor in order to determine if EVAP purge
solenoid is leaking vacuum to EVAP system. This DTC sets if vacuum in
EVAP system is greater than a predetermined value within a
predetermined time. DTC will set when PCM detects a vacuum in the EVAP
system when purge is not commanded.
Have fun. I hope you have a scan tool like Autotap. :eek:
Could it be caused by not tightening the gas cap? LOL :cheers:
