WHERE IS THE O2 SENSORS LOCATED ON A 2004 DIAMANTE

ZJ Limited

• 17989 Answers
• Posted on Feb 04, 2011

SOURCE: where are the o2 sensors located on a 2004 jeep

Grand Cherokee oxygen sensor locations for 4.0 and 4.7 engines...






An O2 sensor is a galvanic battery that provides the PCM with a voltage signal (0-1 volt) inversely proportional to the amount of oxygen in the exhaust. In other words, if the oxygen content is low, the voltage output is high; if the oxygen content is high the output voltage is low. The PCM uses this information to adjust injector pulse-width to achieve the 14.7-to-1 air/fuel ratio necessary for proper engine operation and to control emissions.

The O2 sensor must have a source of oxygen from outside of the exhaust stream for comparison. Current O2 sensors receive their fresh oxygen (outside air) supply through the O2 sensor case housing.

Four wires (circuits) are used on each O2 sensor:
* 12-volt feed circuit for the sensor heating element
* Ground circuit for the heater element
* Low-noise sensor return circuit to the PCM
* Input circuit from the sensor back to the PCM to detect sensor operation


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SOURCE: where are the 4 o2 sensors located on a 2004 jeep cherokee larado

I dont have adiagram fore this but you shoud find them in the manafolds and converters.you can get this codes from other problems.If it is saying too low or high I would look it too it