Diagnostic Aids

Fuel spray may exist at fuel injector, but it may not be enough to start engine. If both fuel injector and circuit are okay, fuel injector nozzle may be partly blocked.

Fig 1: Chart A-5 Schematic - Fuel Injection CKT Check - No-Start

Courtesy of GENERAL MOTORS CORP.

Fig 2: Chart A-5 Flow Chart - Fuel Injection CKT Check - No-Start

Courtesy of GENERAL MOTORS CORP.