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Discussion Starter #1
are there any ECU issues with an 04 ecu. my car is 100% stock engine wise and im ready to install a gutted stocker up. Also, should u plug the bung or put the sensor in. some peopel on nasoic say leave it in b/c the ecu uses that information
 

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When I was researching this it seems that there is an oddity between how the ECU switches from closed to open loop fueling in 2004. So for that reason I waited until I got a reflash to install my gutted U/P, and I did use the resistor instead of the EGT probe.
 

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I have a catless PDE uppipe that is Ceramic Coated and I did nothing with the sensor and have had no problems.
 

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Discussion Starter #4
did u notice the increased power much, and u put the sensor in, or plugged the hole, if it had one, i don't know
 
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