An A/F gauge will tell you what the 02 sensor is saying.. Well, it'll tell you if you're on the rich or lean side of 14.7:1 anyway. I think it's worth while, even with a narrowband for debugging EFI problems.

How you'd use an EGT gauge to tell if your engine is rich or lean, I really have no idea... Running rich/lean does impact EGT, but with no point of reference it'd be hard to tell what the deal is.

I've got a wideband and EGT now.. The EGT is the least useful of the two.

22REturbo.net




1988 4Runner
22RTE core, turbocharged, megasquirted...