P26FF: Auto Configuration Throttle Input Not Present Bank 2
During controller auto-configuration the expected throttle input on bank 2 was not detected. Configuration cannot complete and the second throttle path cannot be used.
What P26FF means
P26FF is a generic OBD-II powertrain code in the fuel & air group. Bank 2 is the side of a V or flat engine opposite cylinder 1.
- Check engine light
- Usually on
- Emissions-related
- No
- Limp mode possible
- Not typical
- Drive cycle to clear
- Not required
Get it fixed
Post this code once and get quotes from local mechanics. Free to post.
Makes the repair and parts links below specific to your car. Kept in this browser only.
Common causes
- 01Broken signal wire from throttle B2Most likely
- 02Hardware variant mismatch — sensor not installedPossible
Can I drive with P26FF?
Usually yes, for a short time.
The car will often drive normally, but get it diagnosed soon. If you notice rough running, warning lights flashing, overheating or a burning smell, stop driving.
Why we rate it moderate
- Turns on the check engine light
Severity is our rule-based rating from the code’s flags in OBDex and the system it affects, not an inspection of your car. If the check engine light is flashing, or you notice overheating, low oil pressure, or brake or steering problems, stop driving and get help.
How to diagnose P26FF
- 1
Confirm the code and save freeze-frame data
Read the codes with an OBD-II scan tool and note every code, not just P26FF. Save the freeze-frame data (speed, load, temperature when the fault set) before clearing anything; it tells you when the fault happens.
- 2
Check for related codes first
Look for P063E. Related codes often share a cause; a circuit or sensor code usually needs fixing before a performance code like this one.
- 3
Check live data
Watch the related sensor and actuator readings in live data (Throttle position sensor bank 2, Control module, Wiring harness) and compare them with expected values in the service information for your vehicle.
- 4
Test the likely causes in order
Start with the most likely cause and work down: Broken signal wire from throttle B2; hardware variant mismatch — sensor not installed. Test before replacing parts.
- 5
Check for recalls and service bulletins
Look up recalls for your exact vehicle with its VIN, and ask a dealer about technical service bulletins (TSBs). Manufacturers sometimes issue software updates or extended warranties for known faults.
- 6
Clear the code and verify the repair
After the repair, clear the code and drive the car under the conditions in the freeze-frame data to confirm it does not return.
P26FF repair cost estimate
Estimate, not a quote. Labor times are typical ranges for this code from OBDex, and $125/hr is an assumed rate. Shop rates and labor times vary by vehicle and region. Diagnosis time may be billed separately.
- DIY difficulty
- Moderate
- Good DIY job?
- Usually a shop job
Needs a scan tool and some experience with testing.
Parts and systems involved
- Throttle position sensor bank 2
- Control module
- Wiring harness
P26FF FAQ
What does P26FF mean?
P26FF means “Auto Configuration Throttle Input Not Present Bank 2”. During controller auto-configuration the expected throttle input on bank 2 was not detected. Configuration cannot complete and the second throttle path cannot be used.
Is P26FF serious? Can I keep driving?
We rate P26FF as moderate severity. Usually yes, for a short time. The car will often drive normally, but get it diagnosed soon. If you notice rough running, warning lights flashing, overheating or a burning smell, stop driving.
What causes P26FF?
The most common causes, from most to least likely: Broken signal wire from throttle B2; Hardware variant mismatch — sensor not installed. Test before replacing parts, because several causes can set the same code.
How much does it cost to fix P26FF?
Typical labor is about $100–$375 at an assumed $125/hour shop rate, plus parts. That is an estimate, not a quote: labor times and rates vary by vehicle and region, and diagnosis may be billed separately.
Can I fix P26FF myself?
DIY difficulty is moderate. Most owners leave this to a shop because it needs involved testing or specialist tools. Always confirm the cause before buying parts.
Will P26FF clear itself?
If the fault was intermittent, the warning may go off once the computer stops seeing it, but the code stays in memory. Fix the cause; clearing the code alone doesn’t repair anything.