P2193 code meaning
System Too Lean at Higher Load (Bank 2)
Powertrain system Generic code P21xx codes Check engine light
What P2193 means
P2193 reports for bank 2 what P2191 reports for bank 1: in the upper load zone the long-term trim of that bank sits at its enrichment limit. It only exists on engines with a separate front sensor per bank, such as V6, V8 and boxer engines. The useful question is whether bank 1 shows the same. Lean at high load on both banks (P2191 with P2193) points to something they share, chiefly fuel pump, filter, pressure regulation or the air mass sensor. Bank 2 alone narrows it to that side: injectors on bank 2, an intake gasket or runner leak there, or an exhaust leak ahead of the bank 2 sensor. No manufacturer documents P2193 publicly; GM monitors the comparable range as P2179, and CARB sets the general rule for exhausted fuel adaptation in 13 CCR 1968.2 (e)(6.2.2).
P2193 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P2193
- Check engine light on
- Hesitation under heavy acceleration
- Bank 2 long-term trim much higher than bank 1 at high load
Common causes of P2193
- Most likelyWeak fuel supply (pump, filter, pressure regulation), usually with P2191
- PossibleRestricted injectors on bank 2
- PossibleIntake gasket or runner leak on the bank 2 side
- Less likelyExhaust leak ahead of the bank 2 front sensor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel pumpFuel filterFuel injector
What each part of P2193 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 93 | The exact fault in that area. |
What to do next
- Note P2193 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2193
What does P2193 mean?
P2193 means "System Too Lean at Higher Load (Bank 2)". P2193 reports for bank 2 what P2191 reports for bank 1: in the upper load zone the long-term trim of that bank sits at its enrichment limit. It is a generic code, so it means the same on every make.
Is it safe to drive with P2193?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2193 fail an emissions test?
Yes, it can. P2193 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2193 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2193 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.