1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 ALL ELECTRONIC CONTROL MODULE

Part Number: 12499117

ALL  ELECTRONIC CONTROL MODULE - Part Number 12499117
Electronic Control Module w/ Wire Harness Kit Ram Jet 502 MEFI 4. Chevy big block V8. This module/harness kit is used to convert a Ram Jet 502 from MEFI 3 to the newer MEFI 4 design, which offers improved idle and performance through a closed loop system. It includes module P/N 88962718, wire harness P/N 88961968, oxygen sensor P/N 25312200, intake air temp sensor P/N 25036751 and oxygen sensor fitting P/N 15156588. Note: If replacing the ECM module only, jumper wire P/N 88963118 is available to convert a MEFI 4 module to a MEFI 3 wire harness to retain the open loop system. The ECM is programmed with a "green mode" that controls the rpm for the break-in period. From start up to the end of first hour is 4000 rpm, second hour is 4500 rpm, third hour is 5500 rpm and fourth hour is 5800 rpm.
w/ Wire Harness Kit Ram Jet 502 MEFI 4 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

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