Hey, I have 2000 Integra LS.

I was driving home today from trading off a CTR grille and my CEL came on. When I got to a stoplight, my car was idling at 1200-1500 RPMs. So I got home and looked in my engine bay. Nothing looked unplugged and I rechecked the intake manifold to make sure there was no vaccum leak. Well, I look down at my radiator fluid resorvoir and its at min. So I fill it up and the car returns to normal idle. I turn the car off, and back on but the CEL is still on. So I run a diagnostic and its throwing codes 20 and 65.

(20 Electrical load detector

65 Secondary oxygen sensor heater).

The only sign that somethings wrong is that now my speedometer and A/C don't work. Plus my car occasionally backfires, which I'm sure is the fault of the cat.

I have no clue what code 20 is, though. Is it a short somewhere in the electrical system? Also, I'm pretty sure secondary O2 sensor heater is in the catalytic converter, am I right?

Anyone have or had similar problems? Any simple solutions or easy on the wallet solutions? Thx!


Edit: Drove in some pretty heavy rain last night, and went through some deep puddles, but everything was working fine until today around 5:30 PM and today was nice and dry and sunny.