Thread: Help!
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Old 03-19-2009, 01:57 AM   #5
Cliff8928
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Quote:
Originally Posted by WhiteV6 View Post
Its in the lower intake manifold by the thermostat. No where near the EGR and I don't know the newer setups but mine always have 2 sensors. One for the ECM and one for the gauge. I think yours is a 3 wire and sends to both. If the ECM doesn't get a temp reading, it will screw with fueling and spark. The EGR isn't on until a certain temp either or a time frame base on start up coolant temp (going off OBD1 experience).

Nah, the newer cars use the same old 2 wire sensors like the OBD I cars do. The gauge is controlled by class 2 serial data from the PCM.
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Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
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