U7193 2004 Sierra 5.3L - Idle quesion

[vortecz71wv]

I have the can tune for 87 installed and left the idle alone. I get dimming lights sometimes and the alternator checks good. Should I raise my idle just a little bit to help with this?

Thanks!

Matt

[mikel]

Cant hurt.

[vortecz71wv]

Thanks! I'll try this and see what happens.

[vortecz71wv]

Another question is this....the Run/Crank voltage....is that what the alternator is putting out in terms of constant voltage?

It reads 14.4 then drops to 2.1v then 5v then back to 2v then to 13 and all over the place.

I hope this helps!

[vortecz71wv]

Bump....