Fuel System Codes
5,039 OBD-II diagnostic trouble codes in this category.
Showing page 28 of 51 (5,039 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P1330 | Igniter Circuit Malfunction No 7 (Lexus) | Engine | Medium |
| P1335 | CKP Circuit (Buick) | Engine | Medium |
| P1336 | CKP Sensor B Range Performance (Acura) | Engine | Medium |
| P1337 | CKP Sensor B Low Input (Acura) | Engine | Medium |
| P1338 | CMP Sensor Bank 1 Open Circuit Or Short To B+ (Volkswagen) | Engine | High |
| P1359 | CKP TDC Sensor Circuit Connector Disconnection (Acura) | Engine | Medium |
| P1361 | TDC Sensor Intermittent Interruption (Acura) | Engine | Medium |
| P1362 | TDC1 Sensor No Signal (Acura) | Engine | Medium |
| P1366 | TDC2 Sensor Intermittent (Acura) | Engine | Medium |
| P1367 | TDC2 Sensor No Signal (Acura) | Engine | Medium |
| P1368 | IC Cylinder 8 Not Toggling After Enable (Buick) | Engine | Medium |
| P1369 | Engine Temperature Light Monitor Failure (Ford) | Engine | Medium |
| P1370 | IC Module 4X Reference Circuit, Too Many Pulses (Buick) | Engine | Medium |
| P1371 | DI Low Resolution Circuit (Buick) | Engine | Medium |
| P1374 | 3X Reference Circuit (Buick) | Engine | Medium |
| P1377 | IC Module CAM Pulse To 4X Reference Pulse Comparison (Buick) | Engine | Medium |
| P1381 | CYP Sensor A Intermittent Interruption (Acura) | Engine | Medium |
| P1382 | CYP Sensor A No Signal (Acura) | Engine | Medium |
| P1386 | CYP Sensor B Intermittent Interruption (Acura) | Engine | Medium |
| P1387 | CYP Sensor B No Signal (Acura) | Engine | Medium |
| P1388 | Auto Shutdown (ASD) Relay Control Circuit Open Or Shorted (Dodge) | Engine | High |
| P1403 | Carbon Canister Shut Off Valve Control Circuit Electrical (Bmw) | Engine | Medium |
| P1410 | Fuel Tank Pressure System (Buick) | Fuel Delivery | Medium |
| P1411 | Secondary Air is Not Being Diverted (Ford) | Engine | Medium |
| P1413 | Secondary Air Injection Pump Relay Control Circuit Signal Low (Bmw) | Fuel Delivery | Medium |
| P1414 | Secondary Air Injection System Monitor Circuit High (Bmw) | Engine | Medium |
| P1415 | Secondary Air Injection (AIR) System (Buick) | Engine | Medium |
| P1416 | AIR System Bank 1 (Buick) | Engine | Medium |
| P1417 | Port Air Relief Circuit (Mazda) | Engine | Medium |
| P1418 | Secondary Air Injection System Relay A Control Circuit High (Buick) | Engine | Medium |
| P1419 | Split Air 2 Circuit (Mazda) | Engine | Medium |
| P1420 | Secondary Air Valve Control Circuit Electrical (Bmw) | Engine | Medium |
| P1421 | Secondary Air System Bank 1 (Bmw) | Engine | Medium |
| P1422 | Secondary Air System Bank 2 (Bmw) | Engine | Medium |
| P1424 | EGI Glow Plug Primary Failure | Engine | Medium |
| P1429 | Electric Air Pump Primary Failure | Fuel Delivery | Medium |
| P1430 | Electric Air Pump Secondary Failure | Fuel Delivery | Medium |
| P1431 | Fuel Level Sensor 2 Performance (Buick) | Fuel Delivery | Medium |
| P1432 | Secondary Air Injection System Incorrect Flow Detected (Bmw) | Engine | Medium |
| P1433 | Fuel Level Sensor 2 Circuit High Voltage (Buick) | Fuel Delivery | Medium |
| P1434 | A/C Refrigerant Temperature Circuit High | Engine | Medium |
| P1435 | A/C Refrigerant Temperature Circuit Range/Performance | Engine | Medium |
| P1438 | Purge Control Valve Control Open Circuit (Bmw) | Engine | High |
| P1439 | Purge Control Valve Control Circuit Signal Low (Bmw) | Engine | Medium |
| P1441 | Leakage Diagnostic Pump Control Open Circuit (Bmw) | Fuel Delivery | High |
| P1442 | Leakage Diagnostic Pump Control Circuit Signal Low (Bmw) | Fuel Delivery | Medium |
| P1444 | Diagnostic Module Tank Leakage DM-TL Pump Control Open Circuit (Bmw) | Fuel Delivery | High |
| P1445 | Diagnostic Module Tank Leakage DM-TL Pump Control Circuit Signal Low (Bmw) | Fuel Delivery | Medium |
| P1446 | Diagnostic Module Tank Leakage DM-TL Pump Control Circuit Signal High (Bmw) | Fuel Delivery | Medium |
| P1447 | Diagnostic Module Tank Leakage DM-TL Pump Too High During Switching (Bmw) | Fuel Delivery | Medium |
| P1448 | Diagnostic Module Tank Leakage DM-TL Pump Too Low During Switching (Bmw) | Fuel Delivery | Medium |
| P1449 | Diagnostic Module Tank Leakage DM-TL Pump Too High (Bmw) | Fuel Delivery | Medium |
| P1450 | Unable To Bleed Up Fuel Tank Vacuum | Fuel System | Medium |
| P1451 | Diagnostic Module Tank Leakage DM-TL Switching Solenoid Control Circuit Signal Low (Bmw) | Engine | Medium |
| P1452 | Diagnostic Module Tank Leakage DM-TL Switching Solenoid Control Circuit Signal High (Bmw) | Engine | Medium |
| P1453 | Secondary Air Injection Pump Relay Control Circuit Electrical (Bmw) | Fuel Delivery | Medium |
| P1454 | Secondary Air Injection Pump With Series Resistor Control Circuit Electrical (Bmw) | Fuel Delivery | Medium |
| P1456 | Fuel Tank Temperature Sensor Circuit Malfunction | Fuel System | Medium |
| P1469 | Low Air Conditioning Cycling Period (Ford) | Engine | Medium |
| P1470 | Leakage Diagnostic Pump Control Circuit Electrical (Bmw) | Fuel Delivery | Medium |
| P1471 | Electrodrive Fan 1 Operational Failure (Driver Side) | Engine | Medium |
| P1472 | Diagnostic Module Tank Leakage DM-TL Switching Solenoid Control Circuit Electrical (Bmw) | Engine | Medium |
| P1473 | Diagnostic Module Tank Leakage DM-TL Pump Current Plausibility (Bmw) | Fuel Delivery | Medium |
| P1474 | Low Fan Control Primary Circuit (Ford) | Engine | Medium |
| P1475 | Leakage Diagnostic Pump Reed Switch Did Not Close (Bmw) | Fuel Delivery | Medium |
| P1476 | Leakage Diagnostic Pump Clamped Tube (Bmw) | Fuel Delivery | Medium |
| P1477 | Leakage Diagnostic Pump Reed Switch Did Not Open (Bmw) | Fuel Delivery | Medium |
| P1480 | Cooling Fan 1 Control Circuit High (Buick) | Cooling System | High |
| P1483 | Engine Coolilng System Performance (Buick) | Engine | Medium |
| P1485 | Air Injection Solenoid Circuit Open Or Shorted (Dodge) | Engine | High |
| P1488 | Auxiliary 5 Volt Supply Output Too Low (Dodge) | Engine | Medium |
| P1495 | Leak Detection Pump Solenoid Circuit Open Or Shorted (Dodge) | Fuel Delivery | High |
| P1496 | 5 Volt Supply Output Too Low (Dodge) | Engine | Medium |
| P1499 | Open Or Shorted Condition Detected In The Hydraulic Cooling Fan Solenoid Control (Dodge) | Cooling System | High |
| P1508 | IAC Valve Circuit Failure (Acura) | Engine | Medium |
| P1511 | DISA Control Circuit Electrical (Bmw) | Engine | Medium |
| P1512 | DISA Control Circuit Signal Low (Bmw) | Engine | Medium |
| P1513 | DISA Control Circuit Signal High (Bmw) | Engine | Medium |
| P1519 | IAC Valve Circuit Failure (Acura) | Engine | Medium |
| P1535 | A/C High Side Temperature Sensor Circuit (Buick) | Engine | Medium |
| P1536 | A/C System ECT Overtemperature (Buick) | Engine | Medium |
| P1548 | A/C Recirculation Circuit (Buick) | Engine | Medium |
| P1555 | Electronic Variable Orifice Output (Buick) | Engine | Medium |
| P1557 | Charge Pressure Positive Deviation (Volkswagen) | Engine | Medium |
| P1558 | Cruise Control Servo Indicates Low (Buick) | Engine | Medium |
| P1559 | Cruise Control Power Mangement Mode (Buick) | Engine | Medium |
| P1561 | Cruise Vent Solenoid (Buick) | Engine | Medium |
| P1562 | Cruise Vacuum Solenoid (Buick) | Engine | Medium |
| P1564 | Control Module Selection (Bmw) | Engine | Medium |
| P1567 | Cruise Control System Active Braking Control Active (Buick) | Engine | Medium |
| P1568 | Cruise Servo Stroke Greater Than Commanded In Cruise (Buick) | Engine | Medium |
| P1570 | Cruise Control System Traction Control Active (Buick) | Engine | Medium |
| P1571 | TCS PWM Circuit No Frequency (Buick) | Engine | Medium |
| P1572 | ASR Active Circuit Low Too Long (Buick) | Engine | Medium |
| P1574 | Stoplamp Switch Circuit (Buick) | Engine | Medium |
| P1575 | Extended Travel Brake Switch Circuit (Buick) | Engine | Medium |
| P1578 | BBV Sensor Circuit Low Vacuum (Buick) | Engine | Medium |
| P1583 | Cruise Direction Circuit High Volume (Buick) | Engine | Medium |
| P1584 | Cruise Control Disabled (Buick) | Engine | Medium |
| P1585 | Cruise Inhibit Control Circuit (Buick) | Engine | Medium |
About Fuel System Codes
This page lists all 5,039 OBD-II diagnostic trouble codes classified under the Fuel System category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the fuel system system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.
When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.
Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.