When does the p0443 code set on a Dodge?
Hi there. A P0443 code will set when the evaporative emission system performs a self test and activates the purge valve to use engine vacuum to pull a vacuum on the tank for leak testing. When the engine computer does not see the fuel tank pressure lower, it sets the P0443 code.
What causes a p0443 purge control circuit?
To cause a P0443, there has to be a problem with the purge control CIRCUIT , not necessarily the valve. Usually they are a unit housing the valve and the solenoid as an assembly. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve. That said, it could be any of the following:
What does p0440 mean on a fuel tank?
What Does P0440 Mean? The evaporative emission control (EVAP) system prevents fuel vapors from escaping into the atmosphere. When the vent control valve is open, the fuel vapors from the fuel tank travel through a vent line to the charcoal canister.
What’s the emissions code on my Grand Cherokee?
The Grand Cherokee 2002 isn’t passing emissions and code P0443 came up. So I replaced the canister purge valve and reset the computer (disconnected the battery then reconnected it) and the check engine light went off for about 10 miles a…
What does p0443 mean on a Jeep Grand Cherokee?
P0443 indicates that there is a problem with the process that commands the purge valve solenoid. The Grand Cherokee’s ECM commands the purge valve by activating a ground circuit. P0443 occurs when the ECM has told the purge valve to open and it detects that didn’t open due to a wiring issue.
To cause a P0443, there has to be a problem with the purge control CIRCUIT , not necessarily the valve. Usually they are a unit housing the valve and the solenoid as an assembly. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve. That said, it could be any of the following:
Why does my Jeep Grand Cherokee have a purge code?
If your Grand Cherokee has this code, it is indicating the EVAP purge control valve circuit is malfunctioning.. This is typically caused by a short in the wiring to or from the purge valve solenoid, or an issue with the solenoid itself. Before you do anything, make sure the gas cap is on and sealed tightly. A bad gas cap can throw this code.
The Grand Cherokee 2002 isn’t passing emissions and code P0443 came up. So I replaced the canister purge valve and reset the computer (disconnected the battery then reconnected it) and the check engine light went off for about 10 miles a…