P1 codes (make-specific)
P1xx codes mainly cover: fuel mixture, idle and throttle, egr valve. Our list has 105 codes in this range. 12 of them mean you shouldn't keep driving. Repairs cost roughly €10–2500, depending on the fault. The most common are P1000, P1081, P1083. Based on AI combined with our hands-on workshop experience and knowledge.
Most common in this range
P1000On-board self-checks not yet complete (OBD readiness)P1081Front oxygen sensor: control limit exceededP1083Mixture too lean, control limit reached (bank 1)P1084Mixture too rich, control limit reached (bank 1)P1085Mixture too lean, control limit reached (bank 2)P1086Mixture too rich, control limit reached (bank 2)P1093Fuel system fault, fuel pressure unstable (FSI/TFSI)P1120Accelerator pedal position sensor: circuit fault
All codes in this range
P1000On-board self-checks not yet complete (OBD readiness)P1081Front oxygen sensor: control limit exceededP1083Mixture too lean, control limit reached (bank 1)P1084Mixture too rich, control limit reached (bank 1)P1085Mixture too lean, control limit reached (bank 2)P1086Mixture too rich, control limit reached (bank 2)P1093Fuel system fault, fuel pressure unstable (FSI/TFSI)P1120Accelerator pedal position sensor: circuit faultP1121Accelerator pedal position sensor: implausible readingP1125Throttle control motor circuit faultP1126Throttle magnetic clutch: circuit faultP1127Electronic throttle actuator supply faultP1128Long-term fuel trim too lean, multiplicative (bank 1)P1129Long-term fuel trim too rich, multiplicative (bank 1)P1130Long-term fuel trim too lean, multiplicative (bank 2)P1131Long-term fuel trim too rich, multiplicative (bank 2)P1132Front oxygen sensor not switching, reads rich (bank 1)P1133Air/fuel ratio sensor slow to respond (bank 1, sensor 1)P1134Oxygen sensor transition time ratio wrong (bank 1, sensor 1)P1135Air/fuel ratio sensor heater: circuit fault (bank 1, sensor 1)P1136Fuel trim too lean, additive (bank 1)P1137Fuel trim too rich, additive (bank 1)P1138Fuel trim too lean, additive (bank 2)P1139Fuel trim too rich, additive (bank 2)P1148Closed-loop mixture control not working (bank 1)P1150Air/fuel ratio sensor: implausible reading (bank 2, sensor 1)P1151Front oxygen sensor not switching, reads lean (bank 2)P1152Front oxygen sensor not switching, reads rich (bank 2)P1153Air/fuel ratio sensor slow to respond (bank 2, sensor 1)P1155Air/fuel ratio sensor heater: circuit fault (bank 2, sensor 1)P1168Closed-loop mixture control not working (bank 2)P1181EGR valve control (diesel)P1188Fuel control (bank 1, sensor 1)P1189Fuel control (bank 2, sensor 1)P1259VTEC system faultP1260Theft detected, engine immobilisedP1270Accelerator pedal sensor: implausible signalP1296Cooling system fault (thermostat or sensor)P1297Boost hose between turbo and throttle leakingP1300Igniter circuit fault (no. 1)P1310Igniter circuit fault (no. 2)P1320Ignition signal primary circuit faultP1325Knock control at its limit (cylinder 1)P1326Knock control at its limit (cylinder 2)P1327Knock control at its limit (cylinder 3)P1328Knock control at its limit (cylinder 4)P1335Crankshaft sensor: no signal while the engine runsP1336Engine torque monitoring adaptation at limitP1345Crankshaft and camshaft positions don't matchP1346VVT sensor: implausible reading (bank 1)P1349VVT system fault (bank 1)P1361TDC sensor: signal drops out at timesP1362TDC sensor: no signalP1380Misfire detection disabled, rough road data unavailableP1381Cylinder position sensor: signal drops out at timesP1382Cylinder position sensor: no signalP1386Internal knock control fault in the engine computerP1397Exhaust camshaft position sensor: circuit faultP1400EGR differential pressure sensor (DPFE): signal too lowP1401EGR valve circuit shorted to groundP1403EGR system flow deviationP1405DPFE sensor upstream hose off or blockedP1406DPFE sensor downstream hose off or blockedP1411Secondary air flow too low (bank 2)P1416Secondary air valve fault (bank 2)P1421Secondary air valve circuit shorted to groundP1425Purge valve circuit shorted to groundP1434Fuel vapour leak check pump (DMTL)P1450Unable to pull vacuum in the fuel tankP1453Secondary air pump relay circuit faultP1456Fuel vapour leak on the tank sideP1457Fuel vapour leak on the canister sideP1491EGR valve lift insufficientP1500Fuel pump relay circuit faultP1504Idle air control valve circuit faultP1505Idle air control at its adaptive limitP1506Idle speed too high (overspeed)P1507Idle speed too low (underspeed)P1516Intake runner control: input error (bank 1)P1518Intake runner control stuck openP1519Intake VANOS (camshaft adjustment) not working properlyP1520Exhaust VANOS (camshaft adjustment) not working properlyP1523VANOS solenoid circuit faultP1545Throttle valve control faultP1550Boost pressure differs from targetP1556Boost pressure too low (negative deviation)P1557Boost pressure too high (positive deviation)P1570Engine computer locked by the immobiliserP1600Engine computer permanent supply (BATT) faultP1602Engine computer supply (terminal 30) too lowP1605Knock control processor fault in the engine computerP1607Engine computer internal fault (SAE: ECM/PCM Internal Circuit Malfunction)P1611Engine light request from the gearbox module, short to groundP1626Missing message from the gearbox module on the data busP1630Accelerator pedal sensor 1: signal too lowP1631Immobiliser password incorrectP1633Accelerator pedal sensor 2: signal too lowP1639Accelerator pedal sensors 1 and 2 don't agreeP1640Engine computer memory (EEPROM) faultP1648Powertrain CAN bus faultP1649Missing message from the ABS module on the data busP1656Oil control valve (OCV) circuit faultP1690Engine warning light circuit faultP1744Torque converter clutch solenoid performanceP1780Overdrive cancel switch out of self-test range
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.