engine acceleration

Asked by jimhanson Sep 13, 2015 at 04:16 PM about the 1978 Datsun 280Z

Question type: Maintenance & Repair

Finished with 1978 280Z 2+2 restoration--but the engine hesitates on acceleration.  When the revs build, it operates normally--acceleration is good.  Injectors cleaned, fuel tank cleaned--no help.  There is no carbon buildup from a rich mixture--plugs look good.  Starting--sometimes fires right up--sometimes hesitates to start.  Where to start?

7 Answers
65,510

firebird338 answered 9 years ago

Check air filter and clean throttle body add Lucas Fuel Injector Cleaner to gas tank. I read were you cleaned injectors but the injector cleaner will also clean the intake and exhaust valves.

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45,195

jamnblues answered 9 years ago

I have heard of fuel injection problems on those before- good luck- I have not heard of anybody ever figuring it out-

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