Diagnostic Aids

There may be fuel spray at the fuel injector, but 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.