I finally had some free time to try out my Hypertech 30023.
When you turn it will read any codes stored in you're computer it showed code 141.
But I never had any engine check light.
I will drive the Yukon to work and see if the Code comes back.
But who else had had a code with out showing a check engine light coming on.
When you turn it will read any codes stored in you're computer it showed code 141.
But I never had any engine check light.
I will drive the Yukon to work and see if the Code comes back.
But who else had had a code with out showing a check engine light coming on.
