P0443 : what to do with this nightmare ?

[shadad]

Hi there

Can anyone share the diagram wiring of the Canister Purge Valve ? I have replaced like 3 times on one month and still i have ECL on the dashboard with performance issue. i tried to check the fuse 47 but its OK. there is power on the wire socket ( 13 volts at the end yes but the valve is still no click/ stay closed !) . The valves i have i confirmed its working when connect it to the battery.

at this point i suspect a wiring issue/ground somewhere or the PCM is byebye. i want to trace the wire but i sow it going under the body of the car. to where? i dont know.

So, anyone can share the wire diagram so i can trace for electric or ground issue ?

 

[Bullitt347]

Need to do a smoke test of the evap system.
The canister purge valve opens based on a preset system pressure/vacuum.
If the parameters for the purge valve operation are not met, then it will not turn on/off.
The parameters are not being met because it has a leak in the evap system.

 

[shadad]

Need to do a smoke test of the evap system.
The canister purge valve opens based on a preset system pressure/vacuum.
If the parameters for the purge valve operation are not met, then it will not turn on/off.
The parameters are not being met because it has a leak in the evap system.

Hi,
I can measure 13 volts at Canister Purge Valve wires end beside there is no errors or CEL about leak on the system. previously there was a leak and it was logged p0455. soon i fixed that leak the error gone. even with the leak, i was not losing power or having idle issue at all. it was only MPG issue.

P0443 is what i have and its a circuit condition.​

 

[89ripper]

What year/engine is this? Below is a link for p0443 possible causes on a 2005 4.6

P0443 — 2005 Ford Mustang V8-4.6L VIN H Service Manual | Operation CHARM

Detailed repair manual for the 2005 Ford Mustang V8-4.6L VIN H.

charm.li

 

[shadad]

What year/engine is this? Below is a link for p0443 possible causes on a 2005 4.6

P0443 — 2005 Ford Mustang V8-4.6L VIN H Service Manual | Operation CHARM

Detailed repair manual for the 2005 Ford Mustang V8-4.6L VIN H.

charm.li

thank you very much !
it is 2005 Mustang GT . this will really help me a lot.

thank you.

 

[shadad]

Hi all
sorry to post this late. after checking everything and combining the fact that i also have all O2 sensors issues, few months ago, i replaced my PCM and ALL issues got fixed.
the car is running like a horse. .
thank you all and wish my post would help someone on the future.

 

[horse sence]

Is it a aftermarket purge valve? I replaced mine with a doorman valve and it quit working almost instantly . Found a good used one and never had the problem again.