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homemade87 · 03-14-2017, 08:23 AM

I had the same problem . Tuner changed the setting in the pcm . Cant remember if he had to set it on 4 or 8 cylinder . But it fixed mine from reading 1/2 .

03-14-2017, 08:23 AM	#2
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: Tach reads 1/2 of what it should I had the same problem . Tuner changed the setting in the pcm . Cant remember if he had to set it on 4 or 8 cylinder . But it fixed mine from reading 1/2 .