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8 Instruments & Controls
Indicator
Circuit Inspection
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.
(1) MAP sensor connector
(2) ECT sensor connector
(3) TP sensor connector
(4) IAT sensor connector
(5) Injector connector
(6) No.1/No.2 CKP sensor connector
(7) ECM connector
Remember, circuit inspection is not a “cure-all”
for other problems in your engine’s PGM-FI
system.
(1)
(2)
(5)
(7)
(3) (6) (4)
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