TROUBLESHOOTING Problem | Possible cause | Remedy | Page Engine overheats | Cooling system problem | Troubleshoot cooling system | CO-1 | Incorrect ignition timing | Reset timing | IG-20 Engine will not crank or cranks slowly | Starting system faulty | Troubleshoot starting system | ST-2 Engine will not start/hard to start (cranks OK) | Vacuum leaks • PCV hoses • EGR valve • Intake manifold • Air intake chamber • Throttle body • ISC valve | Repair as necessary | | Pulling in air between air flow meter and throttle body | Repair as necessary | | Ignition problems • Ignition coil • Igniter • (7M-GE) Distributor (7M-GTE) Cam position sensor | Perform spark test | IG-5, 10 | High-tension cord disconnected or broken | Inspect cord | IG-6, 11 | No fuel supply to injector • No fuel in tank • Fuel pump not working • Fuel filter clogged • Fuel line clogged or leaking | Troubleshoot EFI system | FI-10 | EFI system problem | Repair as necessary | | ISC system problem | Check ISC system | FI-106 | Spark plugs faulty | Inspect plugs | IG-7 | Low compression | Check compression | EM-20, 21 Rough idle, stalls or misses | Vacuum leaks • PCV hoses • EGR valve • Intake manifold • Air intake chamber • Throttle body • ISC valve | Repair as necessary | | Pulling in air between air flow meter and throttle body | | | Incorrect idle speed | Check ISC system | FI-106 | Incorrect ignition timing | Reset timing | IG-20 | Ignition problems • Ignition coil • Igniter • (7M-GE) Distributor (7M-GTE) Cam position sensor | Perform spark test | IG-5, 10 | High-tension cord faulty | Inspect cord | IG-6, 11 | EFI system problems | Repair as necessary |