Quote:
Originally Posted by BigRed0803
Any more ideas?
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I would check and re-check every vacuum hose for any potential leak.
Reference:
The O2 sensor produces a voltage based on oxygen content in the exhaust. The voltage varies between .1 and .9 Volts, .1 indicating lean and .9 indicating rich. The ECM constantly monitors this voltage while in closed loop to determine how much fuel to inject. If the ECM determines that the O2 sensor voltage was too low (less than .4 Volts) for too long (for more than 20 seconds (time varies with model)), this code is set.
Usually the cause of P0130 is a bad oxygen sensor, however this isn't always the case. If your o2 sensors haven't been replaced and they are old, it's a good bet that the sensor is the problem. But, It could be caused by any of the following:
*Water or corrosion in the connector
* Loose terminals in the connector
*Wiring burnt on exhaust components
*Open or short in the wiring due to rubbing on engine components
*Holes in exhaust allowing unmetered oxygen into exhaust system
*Unmetered vacuum leak at the engine
*Bad o2 sensor
*Bad PCM