p0451 cel help
p0451 cel help
I've been getting cel p0451 about once a month and been clearing it for the past three months. It says evaporative emission control system pressure sensor range performance. Please. Help I'm a noob when it comes to.cels and don't know what that means thanks
Junior Member
Joined: 05-29-09
Posts: 458
Likes: 1
From: Houston Texas
I found this - help any ?
Senior Member
Joined: 08-05-08
Posts: 1,460
Likes: 1
From: Iowa
https://www.cobaltss.net/forums/2-0l...py-lnf-207984/
This??
Pics included.
My purge valve solenoid went bad. You can disconnect it but I just replaced it. ~$40. Only one bolt, very very easy. It IS POSSIBLE that it can also give you a gas cap error. Mine did when it was disconnected.
This??
Pics included.
My purge valve solenoid went bad. You can disconnect it but I just replaced it. ~$40. Only one bolt, very very easy. It IS POSSIBLE that it can also give you a gas cap error. Mine did when it was disconnected.
Senior Member
Joined: 02-09-09
Posts: 4,374
Likes: 5
From: Tejas
I think we're talking about three different things:
1) The Evap Purge Solenoid is the valve in the engine bay that controls how much fuel vapor the engine takes in while you're driving it around.
2) The Evap Vent Solenoid is a valve on the canister itself under the car in the back that allows the car's fuel tank to "breathe"/equilize when you're driving or filling up on gas.
3) There's also a Fuel Tank Pressure Sensor on the canister too, that monitors any changes in pressure.
I'm not familiar with the code itself, but according to the code's description it sounds to me like part #3 is circling the drain.
1) The Evap Purge Solenoid is the valve in the engine bay that controls how much fuel vapor the engine takes in while you're driving it around.
2) The Evap Vent Solenoid is a valve on the canister itself under the car in the back that allows the car's fuel tank to "breathe"/equilize when you're driving or filling up on gas.
3) There's also a Fuel Tank Pressure Sensor on the canister too, that monitors any changes in pressure.
I'm not familiar with the code itself, but according to the code's description it sounds to me like part #3 is circling the drain.
I think we're talking about three different things:
1) The Evap Purge Solenoid is the valve in the engine bay that controls how much fuel vapor the engine takes in while you're driving it around.
2) The Evap Vent Solenoid is a valve on the canister itself under the car in the back that allows the car's fuel tank to "breathe"/equilize when you're driving or filling up on gas.
3) There's also a Fuel Tank Pressure Sensor on the canister too, that monitors any changes in pressure.
I'm not familiar with the code itself, but according to the code's description it sounds to me like part #3 is circling the drain.
1) The Evap Purge Solenoid is the valve in the engine bay that controls how much fuel vapor the engine takes in while you're driving it around.
2) The Evap Vent Solenoid is a valve on the canister itself under the car in the back that allows the car's fuel tank to "breathe"/equilize when you're driving or filling up on gas.
3) There's also a Fuel Tank Pressure Sensor on the canister too, that monitors any changes in pressure.
I'm not familiar with the code itself, but according to the code's description it sounds to me like part #3 is circling the drain.
I am having problems with either 2 or 3. OP, are you having long starts or issues after filling up or anything?
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