P0443: EVAP System Purge Control Valve A Circuit
A generic powertrain (engine and transmission) trouble code, same meaning on every brand.
Yes - no drivability impact.
Symptoms
- Check engine light only
Likely causes, most common first
- Purge valve solenoid electrical fault
- Wiring or connector
- Blown fuse in some layouts
Read P0443 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
P0443 is the electrical side of the purge valve - the circuit test failed, regardless of what the valve mechanically does. Where P0441 judges flow, P0443 judges wiring.
A test light at the valve connector while a scan tool commands the valve settles the sensor-versus-harness question in five minutes.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning P0443
“purge solenoid unplugged, several times for years, which causes the vehicle not to start up after getting fuel. Check engine light come on often due to this. When I bring vehicle to Mecanic shop they plug it right back. P0443 evap purge control valve "a" circuit”2020 Ford Fusion · Mar 2026
“Problem: Reoccurring check engine light and ODB2 Code's P0443 & P0444 Repairs made: MAF Sensor Purge Control Valve Reset Computer Air filter Cap less Gas Fill, W0133-2022154 Related Safety recalls: 18S32, 19V515000, 18V735 or 18V735000 I believe the Problem occurs due to an recall that was not performed or performed correctly leaving the problem. I am requesting the recall repair history from form Motor Company Please. Thank You, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).”2012 Ford Focus · Feb 2022
“A stuck CPV is leading to excessive vacuum in the fuel vapor system, causing the plastic fuel tank to deform, resulting in an inaccurate or erratic fuel gauge indication, inaccurate distance to empty (DTE), and/or other drivability concerns. The vehicle also is exhibiting an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0420, P1450, P0443, P0452, P0456, P0460 and/or P2196”2016 Ford Focus · Jul 2021
Show 3 more owner reports
“Aloha i have a 2011 jeep grand cherokee that is over heating. It started when leading up to the recall for a fuel pump relay. The part didnt really exist is what the dealership mention. They would put an order in for the part but it took almost 2 months for it to come in then they put the part in jeep has never drove the same. I pulled up the code P0443 evap system I change that checked codes still had code n problem. I'm running out of option n money about to give up. Pls help is possible would like to jus get another vehicle but I spent mosr of my funds trying to find the jeep smh. Help”2011 Jeep Grand Cherokee · Sep 2018
“My car suddenly loses power while driving. Check engine light came on, with codes p2112, p0443, and c1963. The issue(s) seem to happen while I am driving at 55mpg or higher. This has occurred both on the interstate as well as back roads where the speed limit is 55. The most recent time this happened was a period starting on 06/04/2018 through 06/05/2018. This happened 5 times during this period, but has also happened several times since december 2017 as well.”2010 Ford Escape · Jun 2018 · 85,000 mi
“Engine suddenly shut off while driving. It started back up and 2 miles shut off for the 2nd time. No warning, no rough running. Drove approx. 35 miles with no further problems. The computer showed code p0443 2 times and c121c once. *tr”2007 Dodge Charger · Apr 2014
Cars that report P0443 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with P0443?
Yes - no drivability impact.
How much does it cost to fix P0443?
Typical US repair costs range from $40 for the simplest fix (purge valve) to $300 in the worst case. The right number depends on which cause your car has - see the causes list.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.