car run good when gas peddle is at half way then you put it to floor and it spit and rpms dye down

1976 DATSUN 120Y
148,000 MILES
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PERRY BARBER
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model datsun 280 z car idels good when you drive car and apply the gas half way it revs up and gos good but when you apply more gas its rpms dye down and dose not want to start lifting off gas to half way and rpms pick back up and car takes off
Dec 16, 2011 at 5:41 PM
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FIXITMR
  • ✓ASE Certified Mechanic
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maybe fuel pressure/supply problem? what motor is it? carbureted or throttle body/injection?
Dec 16, 2011 at 5:49 PM
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PERRY BARBER
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  • 3 POSTS
6 cyl. throttle body injection
Dec 16, 2011 at 5:54 PM
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FIXITMR
  • ✓ASE Certified Mechanic
  • 9,990 POSTS
  • ASE Certified Mechanic
also check TPS.
Dec 16, 2011 at 6:16 PM
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PERRY BARBER
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  • 3 POSTS
tps stand for
Dec 16, 2011 at 10:09 PM
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FIXITMR
  • ✓ASE Certified Mechanic
  • 9,990 POSTS
  • ASE Certified Mechanic
we have a definitions section on this site. throttle position sensor.
Dec 17, 2011 at 4:14 AM
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