I turned the engine off and came inside to do some auto repair research on the internet.

There are scanners that can read both OBD1 and OBD2 codes but these are pretty expensive. The connector is usually located under your steering wheel, under the dash.

Contact Us Hello I’m Magnus, the owner and the writer of this website. This letter refers to the plant that manufactured the engine. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0. P1418 Secondary Air Injection System Relay A Control Circuit High. Locate the engine block code. They will be removed. Now that Project Chevelle is making some real power, it's time to give it a little more fuel.

… .Thank you. Within the last 3 years most of the sensors and connectors have been replaced. The connector is often black and has 12 pins on it; pretty easy to identify. The “CML” that follows is the suffix code. P1300 Ignitor Circuit - Read Our Article on Automotive Circuit Testing For Help With This GM Check Engine Light Code, P1305 Ignition Coil 2 Primary Feedback Circuit, P1310 Ignition Coil 3 Primary Feedback Circuit, P1315 Ignition Coil 4 Primary Feedback Circuit, P1320 IC Module 4X Ref Circuit Intermittent, No Pulses, P1321 Electronic Ignition System Fault Line, P1322 EI System Or Ignition Control Missing, P1323 24X Reference Circuit Low Frequency, P1336 Crankshaft Position (CKP) System Variation Not Learned, P1346 Intake Camshaft Position (CMP) Sensor System Performance, P1352 IC Output High/Pulse Detected When Grounded Cyl.2, P1353 IC Output High/Pulse Detected When Grounded Cyl.3, P1354 IC Output High/Pulse Detected When Grounded Cyl.4, P1355 IC OUtput High/Pulse Detected When Grounded Cyl.5, P1356 IC Output High/Pulse Detected When Grounded Cyl.6, P1357 IC Output High/Pulse Detected When Grounded Cyl.7, P1358 IC Output High/Pulse Detected When Grounded Cyl.8, P1362 IC Cylinder 2 Not Toggling After Enable, P1363 IC Cylinder 3 Not Toggling After Enable, P1364 IC Cylinder 4 Not Toggling After Enable, P1365 IC Cylinder 5 Not Toggling After Enable, P1366 IC Cylinder 6 Not Toggling AFter Enable, P1367 IC Cylinder 7 Not Toggling After Enable, P1368 IC Cylinder 8 Not Toggling After Enable, P1370 IC Module 4X Reference Circuit, Too Many Pulses, P1372 Crankshaft Position Sensor Circuit Performance, P1377 IC Module CAM Pulse To 4X Reference Pulse Comparison, P1380 Misfire Detected - Rough Road Data Not Available, P1381 Misfire Detected - No Communication with Brake Control Module, P1390 Wheel Speed Sensor 1, G-Sensor Circuit, P1391 Wheel Speed Sensor 1, G-Sensor Circuit Performance, P1392 Wheel Speed Sensor 1, G-Sensor Circuit Low Voltage, P1393 Wheel Speed Sensor 1, G-Sensor Circuit High Voltage, P1394 Wheel Speed Sensor 1, G-Sensor Circuit Intermittent, P1395 Wheel Speed Sensor 2, G-Sensor Circuit, P1396 Wheel Speed Sensor 2, G-Sensor Circuit Performance, P1397 Wheel Speed Sensor 2, G-Sensor Circuit Low Voltage, P1398 Wheel Speed Sensor 2, G-Sensor Circuit High Voltage, P1399 Wheel Speed Sensor 2, G-Sensor Circuit Intermittent, P1403 Exhaust Gas Recirculation System Valve 1 - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1404 Exhaust Gas Recirculation System Valve 2 - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1405 Exhaust Gas Recirculation System Valve 3 - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1406 EGR Valve Pintle Position Circuit - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1407 EGR Air Intrusion In Exhaust Supply To EGR Valve - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1408 Intake Manifold Pressure Sensor Circuit, P1409 EGR Vacuum System Leak - Read Our Article on EGR Valve Codes For Help With This GM Check Engine Light Code, P1415 Secondary Air Injection (AIR) System, P1418 Secondary Air Injection System Relay A Control Circuit High, P1420 Intake Air Low Pressure Switch Circuit Low Voltage, P1421 Intake Air Low Pressure Switch Circuit High Voltage, P1423 Intake Air High Pressure Switch Circuit High Voltage, P1432 Fuel Level Sensor 2 Circuit Low Voltage, P1433 Fuel Level Sensor 2 Circuit High Voltage, P1441 Evaporative Emission (EVAP) System Flow During Non-Purge, P1442 EVAP Vacuum Switch High Voltage During Ignition On, P1451 Barometric Pressure Sensor Performance, P1501 Vehicle Speed Sensor Circuit Intermittent, P1502 Theft Deterrent System - No Password Received, P1503 Theft Deterrent System - Password Incorrect, P1511 Throttle Control System-Backup System Performance, P1515 Control Module Throttle Actuator Position Performance, P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position When all trouble codes are outputted, it will flash the code 12 – 1 flash * Pause * 2 flashes. It's easiest to use the "Find On This Page" feature of your browser's "Edit" menu to find codes on this page as the list is quite long. In addition, the engine suffix can be cross-referenced to verify the year and body style of the vehicle the engine was built for. GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). was only 12 and nothing find so what should i do Could pleas advise me to find what should i do Thank you. Kindly help me with suggested solutions… I’ve also been advice to get rid of the code but so worried that this decision might affect its brain box and maybe other functions..

. We can provide information on component location, specifications, circuit color/location and more.

Another example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped as follows: A0198005 (A = january, 01, 9800 = pn, 5 = 1985). What should I do? If there is more than one entry for your suffix code, then use the engine block casting date code to identify the year of the engine and identify the correct suffix entry. GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation).

Also tells me to upshift in park lol. I’ll know more after I clear the codes & start with a cleared ECU. The folks over at NastyZ28.com have managed to compile one of the most complete suffix code databases online currently that we could find, so if you want to dig into your small block a bit more, give them a look.

If so will drilling a hole before it allow it to run? Dropped fuel tank & cleaned it, installed new fuel sending unit, fuel pump, strainer, fuel filter. Follow along as we install a new tank and pump from Tanks Inc. We finally get to drive Project Chevelle after the big engine swap, and it's pretty awesome.

P1410 Fuel Tank Pressure System. The open headers were fun, but now it's time for a real exhaust on Project Chevelle. 1988 Chevrolet 2500 pickup with 350 engine, TBI and OBD1. 5.7L. Performance, P1517 Throttle Actuator Control (TAC) Module Performance, P1518 Throttle Actuator Control (TAC) Module Serial Data Circuit, P1519 Electronic Throttle Module Low Volts Communication Disable, P1521 Transmission Engaged At High Throttle Angle, P1522 Park/Neutral To Drive/Reverse At High RPM, P1523 Electronic Throttle Control Throttle Return, P1524 TP Sensor Learned CI, Throttle Angle Out Of Range, P1527 Transmission Range/Pressure Switch Comparison, P1530 Ignition Timing Adjustment Switch Circuit, P1531 A/C Low Side Temerature Sensor Fault, P1532 A/C Evaporator Temperature Sensor Circuit Low Voltage, P1533 A/C Evaporator Temperature Sensor Circuit High Voltage, P1534 A/C High Side Temperature Sensor Low Voltage, P1535 A/C High Side Temperature Sensor Circuit, P1539 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage, P1542 A/C System High Pressure High Temperature, P1546 Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage, P1554 Cruise Engaged Circuit High Voltage, P1559 Cruise Control Power Mangement Mode, P1560 Cruise Control System-Transaxle Not In Drive, P1563 Cruise Vehicle Speed/Set Speed Difference Too High, P1564 Cruise Control System - Vehicle Accel Too High, P1566 Cruise Control System-Engine RPM Too High, P1567 Cruise Control System-Active Braking Control Active, P1568 Cruise Servo Stroke Greater Than Commanded In Cruise, P1569 Cruise Servo Stroke High While Not In Cruise, P1570 Cruise Control System-Traction Control Active, P1575 Extended Travel Brake Switch Circuit, P1576 BBV Sensor Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With These GM Trouble Codes, P1577 BBV Sensor Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With These GM Trouble Codes, P1580 Cruise Move Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With These GM Trouble Codes, P1581 Cruise Move Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With These GM Trouble Codes, P1582 Cruise Direction Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With These GM Trouble Codes, P1583 Cruise Direction Circuit High Volume, P1586 Cruise Control Brake Switch 2 Circuit, P1587 Cruise Control Clutch Control Circuit Low, P1588 Cruise Control Clutch Control Circuit High, P1599 Engine Stall Or Near Stall Detected, P1601 Serial Communication Problem With Devise 1, P1606 Serial Communication Problem With Device 6, P1607 Serial Communication Problem With Devise 7, P1608 Serial Communication Problem With Device 8, P1619 Engine Oil Life Monitor Reset Circuit, P1626 Theft Deterrent Fuel Enable Signal Lost, P1629 Theft Deterrent System-Cranking Signal, P1631 Theft Deterrent Start Enable Signal Not Correct, P1632 Theft Deterrent System-Fuel Disabled, P1633 Ignition Supply Power Circuit Low Voltage, P1634 Ignition 1 Power Circuit Low Voltage, P1652 Powertrain Induced Chassis Pitch Output Circuit, P1654 Service Throttle Soon Lamp Control Circuit, P1655 EVAP Purge Solenoid Control Circuit, P1657 1-4 Upshift Solenoid Control Circuit, P1658 Starter Enable Relay Control Circuit, P1662 Cruise Control Inhibit Control Circuit, P1667 Reverse Inhibit Solenoid Control Circuit, P1672 Low Engine Oil Level Lamp Control Circuit, P1691 Coolant Gage Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This GM Check Engine Light Code, P1692 Coolant Gage Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This GM Check Engine Light Code, P1693 Tachometer Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This GM Check Engine Light Code, P1694 Tachometer Circuit High Voltag - Read Our Article on Automotive Circuit Testing For Help With This GM Check Engine Light Codee, P1740 Transmission Torque Reduction Request Circuit, P1779 Engine Torque Delivered To TCM Signal, P1780 Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit, P1790 Transmission Control Module Checksum, P1792 Transmission Control Module Reprogrammable Memory, P1793 Transmission control Module Stack Overrun, P1800 TCM Power Control Relay Circuit Open, P1801 Performance Selector Switch Failure, P1812 Transmission Over Temperature Condition, P1815 Transmission Range Switch-Start In Wrong Range, P1816 TFP Valve Position Switch-Park/Neutral With Drive Ratio, P1817 TFP Valve Position Switch-Reverse With Drive Ratio, P1818 TFP Valve Position Switch-Drive Without Drive Ratio, P1819 Internal Mode Swtich No Start, Wrong Range, P1822 Internal Mode Switch Circuit B High, P1826 Internal Mode Switch Circuit C High, P1831 PC Solenoid Power Circuit Low Voltage, P1833 A/T Solenoids Power Circuit Low Voltage, P1842 1-2 Shift Solenoid Circuit Low Voltage, P1843 1-2 Shift Solenoid Circuit High Voltage, P1844 Torque Reduction Signal Circuit Desired By TCM, P1845 Transmission Gear Ratio Output Circuit, P1847 2-3 Shift Solenoid Circuit High Voltage, P1851 Brake Band Apply Solenoid Performance, P1852 Brake Band Apply Solenoid Low Voltage, P1853 Brake Band Apply Solenoid High Voltage, P1860 TCC PWM Solenoid Circuit Electrical, P1873 TCC Stator Temp.