Wody
+1y
Was going to Lawton, Ok. Couples days before I gave it a tune up. Plugs, wires, cap and rotor, all 3 belts, and the 2 O2 sensors. The truck has 106,000 miles never had a tune up before. Changed the oil and filter plus that stuff for my six hour trip. It doesn't right. Fires up and runs normal but when it starts to warm up the rpms drop to maybe just under 500 rpms. When you take off it jerks and then smoothes out shift into 2nd same thing. If you get on it and bang gears it doesn't jerk. Replaced the alternator, map sensor, throttle body which had a sensor in it to, replace the two 02 sensor with factory nissan parts. Now when it warms up it idles low but when you bring up the rpms to 1500 or 2000 the idle jumps bounces. What the fuck is the problem?