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2002 Tahoe 5.3

I had what i thought was a great tune until the heat and humidity arrived. Now with the AC on the engine wants to stumble just as I add throttle from a dead stop or when I turn...

Thank you. Very good info.

I have a 2002 Tahoe. I have been setting my AFR for PE using second gear. It seems to me I cycle through first gear too quickly to get accurate AFR results with my AEM wideband.

Is this the...

Great. Thank you.

I have a wideband and am tuning my PE. I have it set to come on at 60% throttle (which is a lot less pedal travel than I expected).

I understand I want approximately 12.5 AFR when at WOT. My...

Just curious if you found a solution. I have a 2002 Tahoe, same cam, same problem. I idle at 550 in drive and P/N. In drive its smooth, in P/N not so much. However, if I turn on the A/C it...

Thanks, Kevin. I have so much to learn with this tuning. I'm just out of the I don't know what I don't know stage.

Hello, I'm new but i have exhausted my research before simply posting a question. I have researched this and tried many things. My idle when warm (195) has a slight shake I am trying to tune out. ...