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chevyman70 · 07-26-2014, 12:56 PM

My reader does not read misfires. I had PCM reflashed at PSI. Since I had it reflashed, all these problems have occurred. Now, even my tach only reads half of the rpms.

07-26-2014, 12:56 PM	#21
chevyman70 Registered User Join Date: May 2002 Location: Lakewood, CA Posts: 194	Re: 5.3l 4l60e issues NEED HELP! My reader does not read misfires. I had PCM reflashed at PSI. Since I had it reflashed, all these problems have occurred. Now, even my tach only reads half of the rpms.