Engine Performance problem
2000 Nissan Xterra 6 cyl Two Wheel Drive Automatic 130000 miles
I have a 2000 Nissan X Terra that began to miss about 2 weeks ago. I first thought it may be an injector stopped up so I added a fuel treatment and began running high octane gas. I also replaced the fuel filter. The problem has progressively gotten worse. I changed the plugs, plug wires, distributor cap and rotor button. The problem began only after the engine reached operating temp, but has sense started as soon as the engine runs. There are no warning lights or check engine light on. I did have the codes checked and a knock sensor code is being thrown. I have been told that this should not effect the timing enough to notice. What may be my problem? I have stumped local mechanics and would like to fix my wife's truck.
If it was one of the sensors wouldn't it throw a code in relation to the sensor? The only code that is showing is the Knock Sensor. I've been told that it will not affect performance. Is there anything specific that can be tested rather than replacing every component on the engine?
have the same problem?
Monday, October 19th, 2009 AT 10:05 PM