Engine runs lean under higher load on your vehicle—risk overheating and damage. Scan P2191, test Bank 1 sensors, then repair or reprogram the module.

Rich idle on your vehicle? P2190 means Too Rich at Idle Bank 2—risking fuel waste and engine wear. Scan, test bank 2 sensor, then re‑program or replace.

Rough idle, check‑engine light on your vehicle? P2189 = System Too Lean at Idle Bank 2 – can stall. Scan, test bank 2 sensors, reprogram or replace ECU.

Rich idle and low fuel economy on your vehicle? P2188 means System Too Rich at Idle Bank 1—fix it now to prevent engine wear. Scan, diagnose, reprogram.

Idle runs lean on your vehicle? P2187 means Bank 1 too lean, which can hurt fuel economy and engine health. Scan, test sensors, and plan module reprogram.

Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic sets P2186 in vehicle—fuel timing error. Scan, test wiring, reprogram or replace sensor.

Engine coolant temp sensor 2 circuit high triggers overheating alert in your vehicle—possible engine damage. Scan, test sensor, then reprogram or replace.

Coolant temperature warning on your vehicle? P2184 means Sensor 2 circuit low, risking overheating. Scan module, test sensor, then reprogram or replace.

Engine coolant temp sensor 2 out of range on your vehicle? Overheating risk and poor performance—scan the P2183, test the sensor, and get it reprogrammed.

Engine overheating in your vehicle? P2182 means Engine Coolant Temperature Sensor 2 Circuit failure—risking engine damage. Scan and replace or reprogram.