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ECM reflash question

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Old Jun 2, 2012 | 01:27 PM
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St. Jude Donor '06-'10, '13
Default ECM reflash question

I recently had my Z06 in for routine change of fluids , and some new brake pads installed...while there I had them reflash my ecm (stock tune) for any updates ...I got a summary of what was upddated :
new calibration enhanements for DTC p0420 and p0430 which are the cat efficiency codes

new calibrations enhancements for p0171 and p0174 which are lean fuel bank codes tied to emissoons again I guess..

and a few others updates. car seems to run a tad different not down on power just differennt not sure how to descibe... did i screw up and get an update that had more strict emissions? my car is an 07. or am i just imagining this ...? just curious
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Old Jun 2, 2012 | 10:46 PM
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I got the drivers cat low efficiency code a few times, they reflashed the ECM and all better, didn't notice any diff in performance. guess they just increased the parameters for tripping the cat low efficiency code.
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Old Jun 3, 2012 | 01:04 PM
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Originally Posted by CGZO6
I got the drivers cat low efficiency code a few times, they reflashed the ECM and all better, didn't notice any diff in performance. guess they just increased the parameters for tripping the cat low efficiency code.
Maybe that's it ...
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