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8 Instruments & Controls
MIL (Malfunction Indicator Lamp)
Always clean around the ECM and keep debris
away from the connectors before disconnecting
them.
A faulty PGM-FI system is often related to poorly
connected or corroded connections. Check the
following connections.
Remember, circuit inspection is not a “cure-all” for
other problems in your engine’s PGM-FI system.
Circuit Inspection
(1) MAP sensor connector
(2) ECT sensor connector
(3) TP sensor connector
(4) IAT sensor connector
(5) Injector connector
(6) CKP sensor connector
(7) ECM connector
(4)
(5)
(7)
(2)
(6)
(1)
(3)
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