1989 Honda Prelude FUEL INJECTION PROBLEM

1989 HONDA PRELUDE
100,000 MILES • 4 CYL • 2WD • MANUAL
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CHASWALL
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Can someone tell me what computer inputs are necessary to fire the fuel injectors?
Mar 7, 2009 at 10:01 AM
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KHLOW2008
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Hi chaswall, Thank you for the donation. The main input for injectors to fire are the crank and cylinder position sensor signals. The positive wires receives power from PGM-FI main relay and the ECU grounds the circuit with input from the crank and cylinder position sensor in the distributor.


https://www.2carpros.com/forum/automotive_pictures/192750_InjectorWire89Prelude_1.jpg

Mar 7, 2009 at 10:27 AM