[OAC_Sparky]

focusnme,Sep 10 2005, 10:14 PM Wrote:help


hey everyone - just had a air/fuel fusion gauge installed but it seems to be to sensitive - when no gas or coasting its low-red - and when im gunning it its solid blue - high

but when im driving on a road or highway it goes up and down up and down up and down costantly - whats happening!!

is this gauge to sensitive?

can i put a resistor in line to decrease the sensitivity to make it more accurate?

help me
[right][snapback]140923[/snapback][/right]

That's normal operation; when you're at an idle the PCM is hunting back and forth between rich and lean.

Now for the information you're not going to like.

If you got the Autometer A/F gauge (or a similar $100 gauge), it's more or less a pretty light show. Don't feel bad, I almost got one too (actually, I DID buy one, but I took it back before I opened it after I learned better).

Unless you're boosting or at least tuning an A/F won't tell you much, and even worse, the A/F is a "narrow band" sensor and isn't that great even if you ARE boosting. If you want an accurate reading, you'll want a "wideband" sensor, you have to actually install its own bung on the exhaust pipe.

A resistor in line will not help, DO NOT put a resistor in parallel.