Help please....Engine stutters and wont get to 120mph in 4th
#11
1- we dont know what year car this is. this is important because if it is a 2001 then there is a greater importance to an accurate primary O2 sensor reading then 2000 and earlier, and that exhaust leak could be screwing that up. if it is an earlier model, the leak doesnt matter as much though you should still fix it.
#12
2001's have a wideband O2 sensor which is more accurate so the 2001 ECU pays closer attention to this reading when dispensing fuel. the 2000 and older cars have narrow band O2 sensors which are less accurate and the car relies more on MAF readings for fuel delivery, though the primary o2 reading still does matter.
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