P2192

System Too Rich at Higher Load Bank 1

Fuel & air metering Generic OBD-II Medium

What it means

P2192 means the ECM sees the air-fuel mixture on bank 1 running too rich specifically under higher engine load — the extra fuel demand exposes a supply that's already over-fuelling. The car drives, but the rich mixture wastes fuel and can foul plugs and load the catalytic converter until the cause is corrected.

Medium

Can I keep driving? Drivable, but the rich mixture wastes fuel and can foul plugs and load the catalytic converter — address it before those add up.

Real-world scan data

Seen in

556

scans in the past year

Found in

0.1%

of scans

0.2%

of scans that found faults

Appears alongside · share of P2192 scans

P0300in 48.2% of scans

P0302in 34.4% of scans

P0301in 32.0% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on (may enter reduced-power fail-safe)
Rough running or hesitation under acceleration
Poor fuel economy
Fuel smell or, in bad cases, black exhaust smoke

Common causes

Most likely first

Excessive fuel pressure (faulty regulator)Likely
Leaking or stuck-open fuel injector on bank 1Common
MAF sensor over-reading airflowCommon
Faulty coolant temp sensor keeping the mixture in a rich warm-up modeLess often
Faulty upstream oxygen sensor on bank 1Less often
Leaking EVAP purge valve adding fuel vaporLess often

How to diagnose & fix

Work through it in order

Read fuel-trim data under load — heavily negative trim on bank 1 confirms a rich condition.
Check fuel pressure against spec; a high reading points to the regulator.
Inspect for leaking or stuck-open injectors on bank 1.
Check the MAF and coolant temp sensor readings for plausibility.
Inspect the EVAP purge valve for leaking or sticking.
Repair the confirmed cause, clear, and re-run a drive cycle.

FAQ

Quick answers

Is it safe to drive with P2192?+

Short-term yes, but a persistently rich mixture fouls plugs and can overheat and damage the catalytic converter, so don't leave it for long.

Can I just clear P2192?+

It returns within a drive cycle or two while the mixture is still rich; the underlying fuel-trim fault has to be fixed.

Read & clear P2192 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX