All,
Got a p0449 code. Last couple of days. Now, when I reset it, it comes in immediately. IIRC, evap solenoid issue. Any advice?
All,
Got a p0449 code. Last couple of days. Now, when I reset it, it comes in immediately. IIRC, evap solenoid issue. Any advice?
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
DTC P0449: Evaporative Emission (EVAP) Vent Solenoid Control Circuit
Battery voltage is supplied to the EVAP canister vent solenoid valve. The ECM grounds the EVAP canister vent solenoid valve control circuit through an internal switch called a driver. The ECM monitors the status of the driver. A scan tool will display the commanded state of the EVAP canister vent solenoid valve as ON or OFF.
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for a minimum of 5 seconds.
P0449
Ignition ON, engine OFF, command the EVAP vent solenoid Not Venting and Venting with a scan tool.
Listen for a click when the valve operates. Verify that both the ON and the OFF states are commanded.
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Sounds like you have a bad evap solenoid.
09 Liquid red G8GT
VMS ecm/tcm 93 octane dyno tune
8000k hid's
Inalfa sunroof
Mach Shorty, Solo HFC's, Kooks 1 7/8 LT's
Rotofab cai & radiator cover
BT from 09.5
GXP fascia & diffuser
BMR subframe connectors & bushings, diff bushings, trans brace, trailering arms
13.207@107.11
338 hp/337 tq
the commanded opening of the purge valve starts at 26% or so, until the car is warmed and at speed, then goes to 100%. If I let off of the gas, it does drive the commanded % back to 26%. Then as I depress the accelerator again, and it immediately goes back to 100%. By you explaination, when the demand goes to 100%, the ecm is not seeing 100% after 5secs (valve not going full open). Does that sound right? I will check valve operation, but will find another way, as my scantool will not command.
Thanks fo the info.
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
I was confused. I swapped Purge solenoids with the GTO, and the code still appears. This is a vent sol issue, not a purge sol issue. Does anyone know where it is (vent solenoid), and how to get to it?
Thanks.
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
Remove the fuel tank assembly. Refer to Fuel Tank Replacement.
Support the evaporative (EVAP) emission canister assembly (1).
Remove the EVAP emission canister assembly to chassis retaining bolts (2).
Remove the EVAP emission canister assembly (1) from the vehicle.
Installation Procedure
09 Liquid red G8GT
VMS ecm/tcm 93 octane dyno tune
8000k hid's
Inalfa sunroof
Mach Shorty, Solo HFC's, Kooks 1 7/8 LT's
Rotofab cai & radiator cover
BT from 09.5
GXP fascia & diffuser
BMR subframe connectors & bushings, diff bushings, trans brace, trailering arms
13.207@107.11
338 hp/337 tq
So the only way to get to the solenoid is by removing the fuel tank??? Holy crap. Guess I'll try a new gas cap first...
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
Or if you still have a warranty, goto the dealer.
09 Liquid red G8GT
VMS ecm/tcm 93 octane dyno tune
8000k hid's
Inalfa sunroof
Mach Shorty, Solo HFC's, Kooks 1 7/8 LT's
Rotofab cai & radiator cover
BT from 09.5
GXP fascia & diffuser
BMR subframe connectors & bushings, diff bushings, trans brace, trailering arms
13.207@107.11
338 hp/337 tq
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
The warranty expired at 50K. The gas cap was a no fix. Still looking for the elusive evap vent solenoid. Anyone gotta a pic?
Yes for us larger guys that screw can be a pain!
08 G8 GT, IOM, Rotofab, HSRK, Kooks LTs, track pipes, Custom engine covers, catch can, radiator cover, and tranny tunnel brace. 402hp/396tq - not bad for a bolt -on car.
8.43 1/8th; 2.01 60' - no skillz.
Part of canister (#4).
09 Liquid red G8GT
VMS ecm/tcm 93 octane dyno tune
8000k hid's
Inalfa sunroof
Mach Shorty, Solo HFC's, Kooks 1 7/8 LT's
Rotofab cai & radiator cover
BT from 09.5
GXP fascia & diffuser
BMR subframe connectors & bushings, diff bushings, trans brace, trailering arms
13.207@107.11
338 hp/337 tq