1998 NISSAN EGR CAUSING MISFIRE IN CYLINDER 1?

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  • Cbr600
  • 1998 NISSAN

Engine Performance problem
1998 Other Nissan Models 4 cyl Two Wheel Drive Automatic 123000 miles

I have a 98 nissan 200sx se-r. I recently replaced all the spark plugs, wires, distributor cap, rotor, fuel filter and air filter. One problem I'm getting is once in awhile I get a engine code: knock sensor and misfire in cylinder 1. It doesn't always come on. Well when I'm driving at cruising speed the engine hesitates and stumbles. Even at the a dead stop the engine jerks for a few seconds. When I stomp on the gas it runs fine just cruising is when it happens. I did a compression test: 175/175/165/175.
I have 3 things in mind that it could be but i'm not sure: tps sensor, o2 sensor or the egr valve. What can be the problem?

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Friday, August 8th, 2008 AT 3:46 PM

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