My 1994 ALtima had a sticking EGR valve. I replaced that and seems to run fune (122K miles). The mechanic did tell me that the Knock Sensor was still throwing codes but when he told me how much (he quoted me about $300 installed) I said forget it, Car runs fine with new EGR valve, (Valve was $80)
I have read in this forum that the knock sensor code is the most common and may come in for other issues. Also the cost of the sensor is about $170. The sensor is located above the oil filter on the back side of the engine just under the intake and sound like a bit&h to install.
I guess I will do without one.
Last edited by nucferr; Sep 6th, 2005 at 07:50 PM.