Quote:
Originally Posted by TerribleONE
I say boost, oil temp, and fuel pressure. Im not sure where all this obsession over the AFR gauge comes from. From what I understand that by the time you notice something is off, it is probably to late. I guess they do make a pretty good lightshow at night. I will probably add one at some point but it was not at the top of my list
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It lets you see trends. If you see the car running gradually richer or leaner over time, it gives you an idea something's up. I'd swap EGT for fuel pressure personally. Isn't a fuel pressure gauge under the hood anyway? Most of them I've seen are on the regulator.