Fault codes P2100–P2199
P21xx codes mainly cover: idle and throttle, injectors, fuel mixture. Our list has 94 codes in this range. With most of them you can drive gently, but get the car checked soon. Repairs cost roughly €30–600, depending on the fault. The most common are P2101, P2135, P2138. Based on AI combined with our hands-on workshop experience and knowledge.
Most common in this range
P2101Throttle motor not working properlyP2135The two throttle sensors disagreeP2138The two accelerator pedal sensors disagreeP2187Mixture too lean at idleP2195Front oxygen sensor reads lean all the timeP2196Front oxygen sensor reads rich all the timeP2102Throttle actuator: signal or voltage too low ("A")P2103Throttle actuator: signal or voltage too high ("A")
All codes in this range
P2101Throttle motor not working properlyP2102Throttle actuator: signal or voltage too low ("A")P2103Throttle actuator: signal or voltage too high ("A")P2104Throttle actuator: engine power limited by the computer (forced idle)P2105Throttle actuator: engine power limited by the computer (engine shut down)P2106Throttle actuator: engine power limited by the computer (power limited)P2107Throttle actuator: internal memory or software fault (control module)P2108Throttle actuator: reading or operation not right (control module)P2109Accelerator pedal position sensor: reading or operation not right ("A")P2110Throttle actuator: engine power limited by the computer (rpm limited)P2111Throttle actuator: stuck openP2112Throttle actuator: stuck closedP2113Accelerator pedal position sensor: reading or operation not right ("B")P2114Accelerator pedal position sensor: reading or operation not right ("C")P2115Accelerator pedal position sensor: reading or operation not right ("D")P2116Accelerator pedal position sensor: reading or operation not right ("E")P2117Accelerator pedal position sensor: reading or operation not right ("F")P2118Throttle actuator: reading or operation not right (motor current)P2119Throttle actuator: reading or operation not right (throttle body)P2120Throttle/pedal position sensor: circuit fault ("D")P2121Throttle/pedal position sensor: reading or operation not right ("D")P2122Throttle/pedal position sensor: signal or voltage too low ("D")P2123Throttle/pedal position sensor: signal or voltage too high ("D")P2124Throttle/pedal position sensor: signal drops out at times ("D")P2125Throttle/pedal position sensor: circuit fault ("E")P2126Throttle/pedal position sensor: reading or operation not right ("E")P2127Throttle/pedal position sensor: signal or voltage too low ("E")P2128Throttle/pedal position sensor: signal or voltage too high ("E")P2129Throttle/pedal position sensor: signal drops out at times ("E")P2130Throttle/pedal position sensor: circuit fault ("F")P2131Throttle/pedal position sensor: reading or operation not right ("F")P2132Throttle/pedal position sensor: signal or voltage too low ("F")P2133Throttle/pedal position sensor: signal or voltage too high ("F")P2134Throttle/pedal position sensor: signal drops out at times ("F")P2135The two throttle sensors disagreeP2138The two accelerator pedal sensors disagreeP2141Electronic throttle: signal or voltage too low ("A")P2142Electronic throttle: signal or voltage too high ("A")P2143EGR valve: open circuit (vent valve)P2144EGR valve: signal or voltage too low (vent valve)P2145EGR valve: signal or voltage too high (vent valve)P2146Injector supply voltage: open circuit ("A")P2147Injector supply voltage: signal or voltage too low ("A")P2148Injector supply voltage: signal or voltage too high ("A")P2149Injector supply voltage: open circuit ("B")P2150Injector supply voltage: signal or voltage too low ("B")P2151Injector supply voltage: signal or voltage too high ("B")P2152Injector supply voltage: open circuit ("C")P2153Injector supply voltage: signal or voltage too low ("C")P2154Injector supply voltage: signal or voltage too high ("C")P2155Injector supply voltage: open circuit ("D")P2156Injector supply voltage: signal or voltage too low ("D")P2157Injector supply voltage: signal or voltage too high ("D")P2158Speed sensor: fault (vehicle speed, "B")P2159Speed sensor: reading or operation not right (vehicle speed, "B")P2160Speed sensor: signal or voltage too low (vehicle speed, "B")P2161Speed sensor: signal drops out at times (vehicle speed, "B")P2162Speed sensor: readings don't match (vehicle speed, "A")P2163Accelerator pedal position sensor: reading or operation not right (maximum stop, "A")P2164Accelerator pedal position sensor: reading or operation not right (maximum stop, "B")P2165Accelerator pedal position sensor: reading or operation not right (maximum stop, "C")P2166Accelerator pedal position sensor: reading or operation not right (maximum stop, "D")P2167Accelerator pedal position sensor: reading or operation not right (maximum stop, "E")P2168Accelerator pedal position sensor: reading or operation not right (maximum stop, "F")P2169Exhaust pressure regulator vent solenoid: open circuitP2170Exhaust pressure regulator vent solenoid: signal or voltage too lowP2171Exhaust pressure regulator vent solenoid: signal or voltage too highP2172Throttle actuator: sudden high air flowP2173Throttle actuator: air flow too highP2174Throttle actuator: sudden low air flowP2175Throttle actuator: air flow too lowP2176Throttle actuator: not learnedP2177Mixture too lean off idle (bank 1)P2178Mixture too rich off idle (bank 1)P2179Mixture too lean off idle (bank 2)P2180Mixture too rich off idle (bank 2)P2182Coolant temperature sensor: circuit fault (sensor 2)P2183Coolant temperature sensor: reading or operation not right (sensor 2)P2184Coolant temperature sensor: signal or voltage too low (sensor 2)P2185Coolant temperature sensor: signal or voltage too high (sensor 2)P2186Coolant temperature sensor: signal drops out at times (sensor 2)P2187Mixture too lean at idleP2188Mixture too rich at idle (bank 1)P2189Mixture too lean at idle (bank 2)P2190Mixture too rich at idle (bank 2)P2191Mixture too lean under higher load (bank 1)P2192Mixture too rich under higher load (bank 1)P2193Mixture too lean under higher load (bank 2)P2194Mixture too rich under higher load (bank 2)P2195Front oxygen sensor reads lean all the timeP2196Front oxygen sensor reads rich all the timeP2197Oxygen sensor: mixture too lean (bank 2, sensor 1)P2198Oxygen sensor: mixture too rich (bank 2, sensor 1)P2199Intake air temperature sensor: readings don't match (sensor 1)
Want a definite answer?
Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.