1989 Honda Prelude FUEL INJECTION PROBLEM

100,000 MILES • 4 CYL • 2WD • MANUAL
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CHASWALL
  • MEMBER
  • 2 POSTS
Can someone tell me what computer inputs are necessary to fire the fuel injectors?
Mar 7, 2009 at 2:01 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
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://images.2carpros.com/forum/automotive_pictures/192750_InjectorWire89Prelude_1.jpg

Mar 7, 2009 at 2:27 AM
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