Fault codes P0300–P0399
P03xx codes mainly cover: engine sensors and timing chain, ignition and misfires, knock sensor. Our list has 94 codes in this range. 63 of them mean you shouldn't keep driving. Repairs cost roughly €40–600, depending on the fault. The most common are P0300, P0301, P0302. Based on AI combined with our hands-on workshop experience and knowledge.
Most common in this range
All codes in this range
P0300Misfires in several cylindersP0301Misfire in cylinder 1P0302Misfire in cylinder 2P0303Misfire in cylinder 3P0304Misfire in cylinder 4P0305Misfire in cylinder 5P0306Misfire in cylinder 6P0307Misfire in cylinder 7P0308Misfire in cylinder 8P0309Misfire in cylinder 9P0310Misfire in cylinder 10P0311Misfire in cylinder 11P0312Misfire in cylinder 12P0313Misfire: misfire with low fuel or fuel cutP0314Misfire: on one cylinder (not specified)P0315Crankshaft position sensor: not learnedP0316Misfire right after startingP0317Traction control signal: not detectedP0318Traction control signal: circuit fault ("A")P0319Traction control signal: circuit fault ("B")P0320Engine speed signal drops outP0321Distributor engine speed signal: reading or operation not right (input)P0322Distributor engine speed signal: no signal (input)P0323Distributor engine speed signal: signal drops out at times (input)P0324Knock sensor: errorP0325Fault in the knock sensor wiringP0326Knock sensor reads wrongP0327Knock sensor signal too weakP0328Knock sensor signal too strongP0329Knock sensor: signal drops out at times (sensor 1, bank 1)P0330Fault in the second knock sensor wiringP0331Knock sensor: reading or operation not right (sensor 2, bank 2)P0332Knock sensor: signal or voltage too low (sensor 2, bank 2)P0333Knock sensor: signal or voltage too high (sensor 2, bank 2)P0334Knock sensor: signal drops out at times (sensor 2, bank 2)P0335No signal from the crankshaft sensorP0336Crankshaft sensor signal is intermittentP0337Crankshaft position sensor: signal or voltage too low ("A")P0338Crankshaft position sensor: signal or voltage too high ("A")P0339Crankshaft position sensor: signal drops out at times ("A")P0340No signal from the camshaft sensorP0341Camshaft sensor signal is faultyP0342Camshaft position sensor: signal or voltage too low ("A", bank 1)P0343Camshaft position sensor: signal or voltage too high ("A", bank 1)P0344Camshaft position sensor: signal drops out at times ("A", bank 1)P0345No signal from the camshaft sensor (bank 2)P0346Camshaft position sensor: reading or operation not right ("A", bank 2)P0347Camshaft position sensor: signal or voltage too low ("A", bank 2)P0348Camshaft position sensor: signal or voltage too high ("A", bank 2)P0349Camshaft position sensor: signal drops out at times ("A", bank 2)P0350Ignition coil circuit: circuit faultP0351Fault in the cylinder 1 ignition coilP0352Fault in the cylinder 2 ignition coilP0353Fault in the cylinder 3 ignition coilP0354Fault in the cylinder 4 ignition coilP0355Ignition coil circuit: circuit fault ("E")P0356Ignition coil circuit: circuit fault ("F")P0357Ignition coil circuit: circuit fault ("G")P0358Ignition coil circuit: circuit fault ("H")P0359Ignition coil circuit: circuit fault (no. 9)P0360Ignition coil circuit: circuit fault ("J")P0361Ignition coil circuit: circuit fault ("K")P0362Ignition coil circuit: circuit fault ("L")P0363Misfire: fuelling disabledP0365Camshaft position sensor: circuit fault ("B", bank 1)P0366Camshaft position sensor: reading or operation not right ("B", bank 1)P0367Camshaft position sensor: signal or voltage too low ("B", bank 1)P0368Camshaft position sensor: signal or voltage too high ("B", bank 1)P0369Camshaft position sensor: signal drops out at times ("B", bank 1)P0370Crankshaft high-resolution signal: circuit fault ("A")P0371Crankshaft high-resolution signal: too many pulses ("A")P0372Crankshaft high-resolution signal: too few pulses ("A")P0373Crankshaft high-resolution signal: erratic pulses ("A")P0374Crankshaft high-resolution signal: no pulses ("A")P0375Crankshaft high-resolution signal: circuit fault ("B")P0376Crankshaft high-resolution signal: too many pulses ("B")P0377Crankshaft high-resolution signal: too few pulses ("B")P0378Crankshaft high-resolution signal: erratic pulses ("B")P0379Crankshaft high-resolution signal: no pulses ("B")P0380Fault in the glow plug power supplyP0381Glow plug warning lamp: circuit faultP0382Glow plug circuit: fault ("B")P0383Glow plugs: signal or voltage too lowP0384Glow plugs: signal or voltage too highP0385Crankshaft position sensor: circuit fault ("B")P0386Crankshaft position sensor: reading or operation not right ("B")P0387Crankshaft position sensor: signal or voltage too low ("B")P0388Crankshaft position sensor: signal or voltage too high ("B")P0389Crankshaft position sensor: signal drops out at times ("B")P0390Camshaft position sensor: circuit fault ("B", bank 2)P0391Camshaft position sensor: reading or operation not right ("B", bank 2)P0392Camshaft position sensor: signal or voltage too low ("B", bank 2)P0393Camshaft position sensor: signal or voltage too high ("B", bank 2)P0394Camshaft position sensor: signal drops out at times ("B", bank 2)
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.