tighten the gas cap. Pull the ECU fuse under the hood and see if it comes back.
Yes, this is a definite DIY job with your stated experience. I think your setup has two? Pre Cat and Post Cat? If you can afford it, I would definitely change out both to 'zero-time' the sensors and start fresh. Before you start, you might want to spray them liberally with PB blaster or some other decent penetrant.Jules said:Is this an easy DIY job? I have a good set of tools and a garage to work in. I've done stuff like brake jobs, replace headers, exhaust work and replaced shocks myself. Any tips on where to buy O2 sensors for a 1996 Rodeo? Should I just replace them all?
P0300 is a cyl misfire usually # 4CleanNClearRodeo said:Well I have the same problem. My light only comes on after I hit about 55 and at that point sometimes it will begin to flicker. I have hooked the engine to a code machine and I get a code 300. Now this basiaclly means that anything to do with your fuel/exausht is bad. ie. injectors/o2 censors/ exhaust manifold/coil pack for ignition. I have not had time to worry about it. I just replace my oil every 3000miles and ride on.