buddha211

So I'm very new to doing my own maintenance on my car. I've got what I would consider an abnormal amount of 'soot' buildup on my tips and was concerned this was caused by the engine running too rich. On the advice of a friend I checked the spark plugs but didn't find anything wrong with them. (Just a few bits of light brown coloring I was told is normal).

Other than getting a dyno tune (expensive around here) is there another way to definitively check my A/F. Could it be as easy as the datalogging function on my Predator?

A_Sixer

One way is to get a wideband gauge....... it uses a special sensor and spits out your A/F ratio not just reach or lean but actual numbers......

I am using the AEM one and I can either just look at the gauge readings or hook it up to my Xcal-2 for dataloging, I am not sure about the predator thought......

here is a pic




here is a link for info http://www.aempower.com/ViewCategory.aspx?CategoryID=67

GT Bob

Plugs are a very accurate way to read AFR's with the lack of a wide band O2. Chances are, the tune your running is still rich under WOT and thats what your seeing.