Question about 1983 Nissan 280ZX

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Fuel injectors won't open

Fuel injectors on 1982 280zx will not open to let fuel in. Is it a grounding problem ?? Alfred

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Wow! an '82. Nifty. Yes, it could be a grounding problem. The older systems used injectors that draw a lot of current. Especially check grounding between the fuel 'computer' box and the engine. Physically/visually check terminals or use a light bulb tester. A volt-ohmmeter is not reliable when checking high current circuits because it doesn't demand high current flow.

I saw the exact type of thing on an older BMW not long ago.

Posted on May 20, 2009

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This is a common problem first try carefully remove the retainer clip wire that holds the plug on use a volt ohm meter plug them in plug set for 12v dc turn engine over to see if your getting pulse from ecu if not check fuel injection relay check all your your relays try using dielectric grease and lightly coat all pins push up and down to allow good contact with all pins if you are getting good signal bad injectors

Posted on Jul 24, 2012


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Hello! Please tell me what you meant by "We took the wires to check for mass"?

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With key off...Disconnect the Injector's plug in connectors...Each connector has two wires marked A and B...A goes to battery feed and B to the Power Train Control Module (PCM)...

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Next measure from each injector (both pins) to ground...You should read zero ohms,,,No resistance to ground...If any one injector reads to ground it is defective...Replace...Since all injectors are tied to common battery, any one injector shorted to ground will short all of them to ground...

Send a comment ..............saailer

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