AFR at idle?

[95opal]

I just started to get underway with the dattalogging and noticed that at idle the AFR is anywhere from 14.7 to 16.0. Is this normal or is it a bit lean? If lean should I be seeing a consistent 14.7 or something close to that? Any thoughts or suggestions welcome as this is all new to me.

 

[Killercanary]

Rich, mine floats between 14-16 too. I was actually going to post a thread with this very question. I think I have my car fixed (it appears to have been a bad connection between the eec tuner and EEC) and I just got done wiring up my innovate SSI-4, so I'm going to go for a ride now and do a little datalogging. I post back here with what I see/find with my datalogs.

 

[95opal]

Paul... Let me know what you find out as Im heading over to the shop to take the car out for some dattalogging runs. I was just worried that at idle it was a little lean.

 

[final5-0]

I'd not worry about it

Over the years, I've talked to quite a few who say they had similar results.

Grady

 

[m0l0]

Its completely normal to get arround 14.5-16 its always jumping arround that AFR

 

[95opal]

Grady, Thanks for the piece of mind. I actually went through the material Don sent and found out that it was OK.

 

[69clark]

I would say that should be fine Rich. A little lean on idle won't hurt anything, and if any thing it maybe better. I know when we raced snowmobiles we liked to set the idle a little rich. Different beast altogether but the theroy is the same.

 

[Bosko5.0]

mynes in that range.

 

[94gsl5.0]

Seems fine to me. I try to target 15 to 16 for idle.

Idleing a bit lean makes things slightly easier on the wallet when it comes to the gas pump