Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer is having trouble keeping the right balance of fuel and air after the exhaust has passed through the second set of filters on one side of the engine.
The P1193 code indicates an issue with the fuel trim system after the catalytic converter on bank 2, which is the side of the engine with the second set of cylinders.
The P1193 code is triggered when the Engine Control Module (ECM) detects that the fuel trim system on bank 2 is not performing within the expected range after the exhaust gases have passed through the catalytic converter. This can affect the vehicle's emissions and performance.
• Check Engine Light is on
• Decreased fuel efficiency
• Rough idling
• Faulty oxygen sensor
• Exhaust leak
• Fuel injector problem
OBD-II: On-Board Diagnostics, second generation, a standardized system for self-diagnostics in vehicles.
ECM: Engine Control Module, the computer that manages the engine's operation.
• Use an OBD-II scanner to confirm the code.
• Inspect the oxygen sensor and wiring for damage.
• Check for exhaust leaks on bank 2.
• Replace faulty oxygen sensor.
• Repair any exhaust leaks.
• Clean or replace fuel injectors.
• OBD-II scanner
• Wrench set
• Multimeter
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Timely replacement of oxygen sensors
• Ensure fuel system is clean
Engine Performance
• Address the issue promptly to avoid further damage.
• Consult a professional mechanic if unsure about repairs.
Check if your vehicle's emissions system is covered under warranty.
This code has been associated with vehicles that have higher mileage and may indicate wear in the exhaust or fuel system.
Moderate – It should be addressed soon to prevent potential damage to the catalytic converter.
Ignoring this code may lead to increased emissions, which can be harmful to the environment and may not pass emissions testing.
• Engine at operating temperature
• Vehicle idling
The oxygen sensor related to this code is located in the exhaust system after the catalytic converter on bank 2.
Q: Can I drive with a P1193 code?
A: While the car may still run, it's best to fix the issue soon to avoid further damage.
Q: How can I prevent a P1193 code?
A: Regular maintenance and timely replacement of oxygen sensors can help prevent this code.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.