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Home >> Pontiac >> 1991 >> 6000 SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 2.5L/151 TBI In-Line 4 VIN [R] >> Computerized Engine Control System >> A-Chart Identification/Availability
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A-Chart Identification/Availability

The following table lists only those A-charts available for this engine, as well as their identifications.

The A-charts are used to find and repair problems which the Diagnostic Circuit Check has found. If the initial steps in the Diagnostic Circuit Check reveal a problem, or if the engine does not start, you will be using one or more A-charts for diagnosis. Consider them the "fundamental problem" charts.

These charts are not contained in this article. They can be found in the appropriate article in this section.

A-CHART IDENTIFICATION/AVAILABILITY

Chart Identification
A-1 No "Check Engine" or "Service Engine Soon" Light
A-2 No ALDL Data or Won't Flash Code 12 ("Check Engine" or "Service Engine Soon" On Steady)
A-3 Engine Cranks But Will Not Run: 1/3
A-5 Fuel Pump Relay Circuit
A-7 Fuel System Diagnosis: 1/3