1993 Nissan 300ZX speed will not go above 40mph

1993 NISSAN 300ZX
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LOVELOBO
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1993 Nissan 300ZX 6 cyl Wheel Drive Type unknown Automatic 175000 miles
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My car is not allowing me to go above 40mph. The RPM are reveing up to 4 @ 40mph. Change fuel filter, oil and filter. Please advise
Feb 12, 2008 at 2:28 PM
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RASMATAZ
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At 4K rpm you should be running at 80 mph

the exhaust system for an excessive backpressure/throttle position and vehicle speed sensors/check the fuel pressure.
Feb 15, 2008 at 12:58 AM