P1300 — 17 documented meanings by make
Documented by: AUDI, CHEVROLET (USA), CHRYSLER, CITROEN, DAIHATSU, FORD, HONDA, HYUNDAI, ISUZU, KIA, LEXUS, MAZDA, MERCEDES-BENZ, MITSUBISHI, OPEL / VAUXHALL, PEUGEOT, RENAULT, SAAB, SEAT, SKODA, TOYOTA, VOLKSWAGEN — the meaning can differ between manufacturers
P1300 does not mean the same thing on every car — manufacturers reuse the number for different faults. 22 makes document it: Audi, Chevrolet (USA), Chrysler, Citroen, Daihatsu, Ford, Honda, Hyundai, Isuzu, Kia, Lexus, Mazda, Mercedes-Benz, Mitsubishi, Opel / Vauxhall, Peugeot, Renault, Saab, SEAT, Skoda, Toyota, Volkswagen. Find your make below.
| Make | Documented meaning | Points at |
|---|---|---|
| Audi | Misfire recognised, reason: lack off fuel | engine misfire |
| SEAT | Misfire recognised, reason: lack off fuel | engine misfire |
| Volkswagen | Misfire recognised, reason: lack off fuel | engine misfire |
| Chevrolet (USA) | Ignition coil 1 primary feedback circuit | ignition coil or spark circuit |
| Chrysler | Ignition timing adjustment circuit | camshaft timing or VVT |
| Mitsubishi | Ignition timing adjustment circuit | camshaft timing or VVT |
| Citroen | Boost calibration | turbocharger or boost control |
| Citroen | Glow plug circuit/open | open circuit |
| Peugeot | Boost calibration | turbocharger or boost control |
| Peugeot | Glow plug circuit/open | open circuit |
| Daihatsu | Ion system combustion control system | |
| Ford | Boost calibration fault | turbocharger or boost control |
| Mazda | Boost calibration fault | turbocharger or boost control |
| Honda | Random misfire | engine misfire |
| Isuzu | Random misfire | engine misfire |
| Hyundai | Synchronisation error, crankshaft position sensor/camshaft position sensor plausibility | camshaft timing or VVT · correlation |
| Kia | Synchronisation error, crankshaft position sensor/camshaft position sensor plausibility | camshaft timing or VVT · correlation |
| Lexus | Igniter circuit, bank 1 | |
| Mercedes-Benz | Crankshaft position sensor circuit, bank 2 | crankshaft position sensor |
| Opel / Vauxhall | Empty fuel tank | |
| Opel / Vauxhall | Misfire detected at low fuel level | engine misfire · signal too low |
| Renault | Combustion misfire in LPG mode | engine misfire |
| Saab | Random misfire detected, catalyst damaging | engine misfire |
| Skoda | Misfire detected - fuel level too low | engine misfire · signal too low |
| Toyota | Ignition system or ignition coil with igniters nr. 1 | ignition coil or spark circuit |
P1300 on Audi, SEAT, Volkswagen
On Audi, SEAT, Volkswagen vehicles P1300 is documented as: Misfire recognised, reason: lack off fuel. P1300 points at engine misfire. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Usually one of: Worn or fouled spark plugs; Failed ignition coil on that cylinder; Injector blocked or leaking; Loss of compression — worn valve or head gasket; Unmetered air leaking into the intake.
Check first, cheapest first:
- Swap the coil with a neighbouring cylinder and see whether the misfire follows it — this identifies a coil fault in minutes and costs nothing
- Pull the plug on that cylinder and read its condition
- Swap the injector the same way if the misfire stayed put
- Check for vacuum leaks around the intake
- Compression-test the cylinder if the electrical and fuel sides are both good
Related Audi, SEAT, Volkswagen codes:
P1300 on Chevrolet (USA)
On Chevrolet (USA) vehicles P1300 is documented as: Ignition coil 1 primary feedback circuit. P1300 points at ignition coil or spark circuit. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Related Chevrolet (USA) codes:
P1300 on Chrysler, Mitsubishi
On Chrysler, Mitsubishi vehicles P1300 is documented as: Ignition timing adjustment circuit. P1300 points at camshaft timing or VVT. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Related Chrysler, Mitsubishi codes:
P1300 on Citroen, Peugeot
On Citroen, Peugeot vehicles P1300 is documented as: Boost calibration; Glow plug circuit/open. P1300 points at turbocharger or boost control. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Usually one of: Boost hose split or clamp loose; Wastegate or variable-vane mechanism sticking; Boost pressure sensor reading wrongly; Turbo bearing worn; Intercooler leaking.
Check first, cheapest first:
- Pressure-test the boost pipework for leaks — a split hose mimics a failed turbo and costs a fraction to fix
- Inspect the actuator and linkage for free movement
- Compare the boost sensor reading with the commanded value on live data
- Check the turbo for shaft play and oil in the intake only after the pipework is proven sealed
Related Citroen, Peugeot codes:
P1300 on Ford, Mazda
On Ford, Mazda vehicles P1300 is documented as: Boost calibration fault. P1300 is stored when the ECU sees malfunction on turbocharger or boost control. That describes how the circuit is behaving, not which part has failed — the wiring, the connector and the component itself can all produce it, which is why the checks below start with the cheapest.
Usually one of: Boost hose split or clamp loose; Wastegate or variable-vane mechanism sticking; Boost pressure sensor reading wrongly; Turbo bearing worn; Intercooler leaking.
Check first, cheapest first:
- Pressure-test the boost pipework for leaks — a split hose mimics a failed turbo and costs a fraction to fix
- Inspect the actuator and linkage for free movement
- Compare the boost sensor reading with the commanded value on live data
- Check the turbo for shaft play and oil in the intake only after the pipework is proven sealed
Related Ford, Mazda codes:
P1300 on Honda, Isuzu
On Honda, Isuzu vehicles P1300 is documented as: Random misfire. P1300 points at engine misfire. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Usually one of: Worn or fouled spark plugs; Failed ignition coil on that cylinder; Injector blocked or leaking; Loss of compression — worn valve or head gasket; Unmetered air leaking into the intake.
Check first, cheapest first:
- Swap the coil with a neighbouring cylinder and see whether the misfire follows it — this identifies a coil fault in minutes and costs nothing
- Pull the plug on that cylinder and read its condition
- Swap the injector the same way if the misfire stayed put
- Check for vacuum leaks around the intake
- Compression-test the cylinder if the electrical and fuel sides are both good
Related Honda, Isuzu codes:
P1300 on Hyundai, Kia
On Hyundai, Kia vehicles P1300 is documented as: Synchronisation error, crankshaft position sensor/camshaft position sensor plausibility. P1300 is stored when the ECU sees correlation on camshaft timing or VVT. That describes how the circuit is behaving, not which part has failed — the wiring, the connector and the component itself can all produce it, which is why the checks below start with the cheapest.
Usually one of: Two sensors that should agree are reading differently; One of the pair has drifted while both remain electrically fine; Mechanical fault making the disagreement genuine; Timing or alignment out of specification.
Check first, cheapest first:
- Read both values side by side on live data — the code is about their relationship, so one alone tells you nothing
- Identify which of the two is wrong by comparing against a third reference
- Check the mechanical alignment or timing the pair is measuring
- Inspect wiring on both sensors before replacing either
- Replace whichever sensor is demonstrably the outlier
Related Hyundai, Kia codes:
P1300 on Mercedes-Benz
On Mercedes-Benz vehicles P1300 is documented as: Crankshaft position sensor circuit, bank 2. P1300 points at crankshaft position sensor (bank 2). The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Related Mercedes-Benz codes:
P1300 on Renault
On Renault vehicles P1300 is documented as: Combustion misfire in LPG mode. P1300 points at engine misfire. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Usually one of: Worn or fouled spark plugs; Failed ignition coil on that cylinder; Injector blocked or leaking; Loss of compression — worn valve or head gasket; Unmetered air leaking into the intake.
Check first, cheapest first:
- Swap the coil with a neighbouring cylinder and see whether the misfire follows it — this identifies a coil fault in minutes and costs nothing
- Pull the plug on that cylinder and read its condition
- Swap the injector the same way if the misfire stayed put
- Check for vacuum leaks around the intake
- Compression-test the cylinder if the electrical and fuel sides are both good
Related Renault codes:
P1300 on Saab
On Saab vehicles P1300 is documented as: Random misfire detected, catalyst damaging. P1300 points at engine misfire. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Usually one of: Worn or fouled spark plugs; Failed ignition coil on that cylinder; Injector blocked or leaking; Loss of compression — worn valve or head gasket; Unmetered air leaking into the intake.
Check first, cheapest first:
- Swap the coil with a neighbouring cylinder and see whether the misfire follows it — this identifies a coil fault in minutes and costs nothing
- Pull the plug on that cylinder and read its condition
- Swap the injector the same way if the misfire stayed put
- Check for vacuum leaks around the intake
- Compression-test the cylinder if the electrical and fuel sides are both good
Related Saab codes:
P1300 on Skoda
On Skoda vehicles P1300 is documented as: Misfire detected - fuel level too low. P1300 is stored when the ECU sees signal too low on engine misfire. That describes how the circuit is behaving, not which part has failed — the wiring, the connector and the component itself can all produce it, which is why the checks below start with the cheapest.
Usually one of: High resistance in the supply or ground path, dragging the signal down; Corroded connector adding resistance the module reads as a low reading; Sensor drifted out of tolerance with age; Partial short to ground somewhere in the signal line.
Check first, cheapest first:
- Read the live value on a scanner and compare with a known-good reading
- Clean and re-seat the connector, then re-test before replacing anything
- Check the ground point for that circuit — a poor ground causes this far more often than a bad sensor
- Measure the sensor against specification with the connector back-probed
- Replace the sensor only once the wiring and ground have been ruled out
Related Skoda codes:
P1300 on Toyota
On Toyota vehicles P1300 is documented as: Ignition system or ignition coil with igniters nr. 1. P1300 points at ignition coil or spark circuit. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.
Related Toyota codes:
Which one is yours
A generic OBD reader gives you the number, not which of these meanings your manufacturer assigned to it. To get to the specific one:
- Use a brand-specific scanner — VCDS for VAG, INPA or ISTA for BMW, XENTRY for Mercedes, Forscan for Ford. It shows the manufacturer's own text rather than the generic one.
- Read all stored codes together — the neighbouring ones usually point at which system is involved and narrow the list.
- Check freeze-frame data: the RPM, temperature and load at the moment it triggered indicate which system was active.
- If you have no brand scanner, tell me the make and model below and I will tell you which of these applies to your car.
Code family
P1xxx is manufacturer-specific code (VW/Audi, BMW, Mercedes, Toyota etc. have different meanings for the same code number).
Severity
Manufacturer-specific codes need a brand scanner (VCDS for VAG, INPA for BMW, STAR for Mercedes).
That is what holds for P1300 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.
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Code breakdown
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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