Ignition wiring diagram
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=51582
Printed Date: June-26-2024 at 6:00am
Topic: Ignition wiring diagram
Posted By: Footer 1952
Subject: Ignition wiring diagram
Date Posted: May-24-2024 at 11:47pm
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Ignition wiring diagram Mid 1980’s BFN or SN My boat 86 BFN Chevy 454. I unknowingly short circuited the plus side of ignition coil to ground. Whole electrical system dead. Ignition circuit breaker not tripped breaker less distributor installed years ago.. My manual only has dash wiring info. Entire dash is dead. Ignition switch blown??? Who would know without wiring diagram. ------------- Lets go footin' '86 Barefoot Nautique |
Replies:
Posted By: KENO
Date Posted: May-25-2024 at 6:32am
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How did you verify that the 20 amp ignition breaker isn't tripped? Did you check the voltage on the input and output connections? Did you check the 50 amp breaker on the back of the engine? Same as above, do you have voltage on the input and output connections? On your Chevy, power to the dash has to get from the battery, to the starter positive terminal connection, to the remote solenoid, then through the 50 amp main breaker, through the 8 pin connectors,(pin5) then to the ignition breaker to power the dash and ignition switch. So using a test meter or test light, you should be able to figure out how far power is making it from the battery and find your issue. Here's a PCM diagram that shows the connections from the battery up to the 5 pin connector for your Chevy After the 5 pin connector the wire goes to the input side of the 20 amp ignition breaker. 
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