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mike switzer
mike switzer,
Category: Nissan
Satisfied Customers: 645
Experience:  lead diagnostic tech at Aamco
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Engine idles smoothly. Starts bucking at around 2500-3000

Customer Question

Engine idles smoothly. Starts bucking at around 2500-3000 rpm. I can rev engine above 3000 rpm but tach will not go beyond 3000k ?!! Have replaced knock sensor, PCV, plugs, wires, distributor, rotor, and most recently the mass air flow sensor (yesterday). Still have the problem of engine bucking. What's next to try?
Submitted: 1 year ago.
Category: Nissan
Expert:  mike switzer replied 1 year ago.
this sounds like your tps sensor is not reading properly. do you have access to a scanner that shows data?