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ECM Reprogram

5801 Views 1 Reply 2 Participants Last post by  obermd, 
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I just received a notice to have the dealer reprogram the engine control module (ECM) to revise the fuel enrichment strategy on my 2013 Cruze eco. My question, is this going to change my fuel economy?

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obermd

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Only if you routinely spend time above 5,000 RPM. The issue is the original programming runs the car too rich at high RPM when under heavy load.
 
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