Exhaust soot has disappeared. Why?
#1
Exhaust soot has disappeared. Why?
I've been running my ProCharger for over 20K miles now, and up until recently I've always had a good build up of black soot on the exhaust tips. I understand that this means I was running a bit rich. But now I don't notice the soot build up any longer and the only thing I did was swap out my plugs. I was running Autolites and replaced them with NJK's. Would changing the spark plugs affect that at all? I don't have a air/fuel guage so I can't measure it.
Is there a way to measure air/ fuel with an SCT tuner?
Is there a way to measure air/ fuel with an SCT tuner?
#3
A plug change could possibly affect how completely the air/fuel mixture burns and could result in the reduction of the soot. The only real way to know is put an air/fuel gauge in the car (preferably a wide band). Do you know what the difference in heat range is on the 2 sets of plugs?
#4
A plug change could possibly affect how completely the air/fuel mixture burns and could result in the reduction of the soot. The only real way to know is put an air/fuel gauge in the car (preferably a wide band). Do you know what the difference in heat range is on the 2 sets of plugs?
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