P0469 OBD-II Trouble Code: Purge Flow Sensor Circuit Intermittent

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0469 code

P0469 is a diagnostic trouble code (DTC) for "Purge Flow Sensor Circuit Intermittent". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P0469 DIAGNOSTIC Get a fair and transparent estimate upfront

P0469 code definition

The P0469 code indicates that there is a problem within the vehicle’s evaporative (fuel) system, and that a portion of the system is not working correctly. Specifically, this code indicates a problem with the purge flow sensor. However, as this is a generic code, the actual definition can vary from one vehicle to another. For instance, for GM vehicles, a P0469 code is “evap flow during non-purge condition,” and for many Asian imports, it is “evap system high purge flow.”

What the P0469 code means

The P0469 code means there is a problem somewhere within the vehicle’s evap system. This may or may not actually be related to the purge flow sensor or solenoid. It could also apply to a number of other system components, including the following:

  • Gas cap
  • Charcoal canister
  • Fuel line
  • Flow sensor
  • Vacuum line
  • Fuel vapor hose

What causes the P0469 code?

The modern evap system is complex, and the P0469 code can be caused by a number of different problems. These can include the following:

What are the symptoms of the P0469 code?

Generally, there are no real symptoms of the P0469 code other than the Check Engine Light illuminating. However, there may be multiple evap system codes stored in the computer other than P0469.

How does a mechanic diagnose the P0469 code?

Diagnosing the P0469 code can be tricky. The mechanic should start by reading all the codes stored in the computer and making an informed decision based on any additional codes other than the P0469 code. The next step is to clear the codes and test drive to determine if the codes reset.

Next, the mechanic should inspect the gas cap to ensure that it is not improperly installed or damaged. Next, the mechanic should visibly inspect wiring and connections, followed by an inspection and test of the charcoal canister. The mechanic should use a smoke machine to test vacuum lines, and should also inspect all fuel vapor lines for damage.

Finally, the mechanic should check the purge control solenoid for operation if all other components are in good working order. Note that diagnosing evap codes can require multiple test drives, as it often takes several drive cycles for codes to reset in the computer.

Common mistakes when diagnosing the P0469 code

The most common mistake here is simply “throwing parts” at the problem without actually diagnosing the underlying issue. Often, this process begins by replacing the gas cap, and then replacing other components down the line as the code returns time and again. Spending more time to accurately diagnose the underlying issue saves money in the long run.

How serious is the P0469 code?

The P0469 code may or may not be serious depending on the underlying cause of the code. For minor problems like a faulty or incorrectly installed gas cap, it is not serious at all. However, in other instances, the supply of fuel to the engine could become limited, leaving the vehicle unable to be driven.

What repairs can fix the P0469 code?

A very wide range of repairs may be needed to fix the P0469 code, as there is no single underlying cause in all instances. The repairs should hinge on an in-depth, accurate diagnostic process that uncovers the true issue.

Additional comments for consideration regarding the P0469 code

Clearing the P0469 code and test driving one time is usually not sufficient. It can require multiple drive cycles for the computer to set a code and turn on the Check Engine Light.

Need help with a P0469 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P0469

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0469 code.

SCHEDULE P0469 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

P0787 OBD-II Trouble Code: Shift/Timing Solenoid Low
P0787 means there is a problem with the shift/timing solenoid which may cause the transmission to not shift out of gear or have harsh shifting.
P2627 OBD-II Trouble Code: O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 1
P2627 means there is a problem with the oxygen sensor for bank 1 due to malfunctioning sensor, faulty wiring, blown fuse, or leaking exhaust.
P0648 OBD-II Trouble Code: Immobilizer Lamp Control Circuit
P0648 code means an abnormal reading in the immobilizer lamp control circuit has been detected due to a defective bulb, circuit, or faulty wiring.

Related questions

check engine light
When the radiator broke, the engine coolant sensor or other sensors may have set a code in the computer. These codes and the Check Engine Light will not go away until the vehicle is scanned and codes cleared if repairs...
Battery replaced, engine malfunction warning
Hello there. With any Check Engine Light, the first step is to have the code read to determine what system is involved with the fault. It is possible that this fault was caused by the vehicle losing power when the...
I have a 2007 Ford Focus. The serpentine belt broke causing my check engine light to come on as well as my battery light.
You will have to have the computer scanned to get the codes stored to see if there is only codes pertaining to the low voltage condition and have codes cleared using the scanner and then see what codes return. If...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com