Tag Archives: gear ratio

1987 Corvette ECU EPROM Codes

The following is a list of EPROM Codes for a 1987 Corvette Engine Control Unit. Prom Broadcast Code (BCC) Prom Code Scan ID Transmission Type Gear Ratio Emission Standards Body Type HCY 9539 1571 4 Speed Manual 3.07 Federal Y HCZ 4423 1581 4 Speed Manual 3.07 Federal Y HDA 4427 1591 Automatic 2.59 Federal […]

1985 ECU EPROM Codes

Prom Broadcast Code (BCC) Prom Code Scan ID Transmission Type Gear Ratio Emission Standards Body Type FTS 9529 0061 700R4 N/A California/Federal Y FTT 9538 0071 4 Speed Manual 2.88 1st Federal Y FTW 9573 0091 4 Speed Manual 2.88 1st California/Federal Y FUM 0561 0101 700R4 N/A California/Federal Y FUN 9737 0111 4 Speed […]

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