P0446 & P0446 (pd) evap code
-
YoungBonne12
- SLE Member
- Posts: 73
- Joined: Wed Aug 10, 2011 9:26 pm
- Year and Trim: 2002 Bonneville SSEI
P0446 & P0446 (pd) evap code
so i've had an SES code for awhile now, along with poor gas mileage (18.8), and i just recently got the scanner from our shop. i scanned the codes and it gave me two codes. A P0446 & P0446 (pd). both said "EVAP emission control system vent circuit malfunction" .... i have 0 idea where to go from here and i could definitely use some help guys. please and thank you. along with the ses, i am getting a service vehicle soon alert which i will address in another topic. thanks guys!
2002 Bonnie SSEI debadged and pieced together.
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
Re: P0446 & P0446 (pd) evap code
I would start by inspecting the vacuume harness that connects from the TB, to the Evap sensor, LIM and around to the MAP and Fuel pressure Reg. common to have leaks.
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
Re: P0446 & P0446 (pd) evap code
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
-
CMNTMXR57
- Certified Bonneville Nut
- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: P0446 & P0446 (pd) evap code
Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
-
YoungBonne12
- SLE Member
- Posts: 73
- Joined: Wed Aug 10, 2011 9:26 pm
- Year and Trim: 2002 Bonneville SSEI
Re: P0446 & P0446 (pd) evap code
No, both codes were P0446. So it is possible that all my problems could be from a loss of vacuum in the system?
2002 Bonnie SSEI debadged and pieced together.
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
-
CMNTMXR57
- Certified Bonneville Nut
- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: P0446 & P0446 (pd) evap code
I'll have to look up the specifics of it. P0440, P0442, and P0446 are all EVAP related codes that are the inverse of one another. One is for not being able to maintain pressure and decay at a predetermined rate, the other is that it won't vent at all when commanded to. I just never remember which is which.
Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
Re: P0446 & P0446 (pd) evap code
check your other post for loss of boost. they are most likely all one problem. I posted the info on the vac harnesses and what not in the other post.
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
-
YoungBonne12
- SLE Member
- Posts: 73
- Joined: Wed Aug 10, 2011 9:26 pm
- Year and Trim: 2002 Bonneville SSEI
Re: P0446 & P0446 (pd) evap code
Thank you guys. That would be great if it was all from these weathered hoses. I've told my step-dad about everything and we're going to look around for hoses and what not to see if that solves any problems. If after replacing the hoses, there is still problems, I will be back with more info
2002 Bonnie SSEI debadged and pieced together.
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
-
YoungBonne12
- SLE Member
- Posts: 73
- Joined: Wed Aug 10, 2011 9:26 pm
- Year and Trim: 2002 Bonneville SSEI
Re: P0446 & P0446 (pd) evap code
my supercharger problem is fixed. and i just replaced the purge solenoid, but to no avail. since it is most likely an electrical issue (circuit malfunction) what do i look for next? because nobody wants to bite the bullet and take it to a dealer
2002 Bonnie SSEI debadged and pieced together.
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)
Daily Driver. 46,xxx original
Alpine 136bt
JX 360/4, Kenwood 6x9, infinity 6.5
Pdx 1.1000 on a W7 12"
1996 Viper GTS - The Rare Drive
11k miles
Autonetworkinc.com .... go buy something ;)