Spenceeros

Great, Thanks for the info. I am starting to suspect that it might be a bad cat converter too.

I have a 92' pathy with about 220k on it and I decided to put this high mileage 10-40 mobil one in during an oil change. Now I do notice a pretty big decrease in gas mileage. I'm not sure if its just coincidence of my car getting old or if the -40 weight is too heavy for the older engine. And yes I know a lot of people look down on using synthetic in older cars, but it so far has been working out for me.

The codes won't tell you squat if your check engine light hasn't come on. In regard to the possible fuel leak, go to Harbor freight and get a fuel pressure gauge. They run about $20 bucks and will tell you if you have a fuel pressure problem.

You probably have a leak in your fuel lines. I had a similar problem, not with the MPG, but with the fuel smell. It can smell like its coming from anywere when you are driving. I found my leak on the rubber lines near the fuel filter.

Well according to the factory service manual, it could also be a problem with you fuel regulator. I have had similar problems when the vacuum hose from the regulator cracked.

hmm well I think I figured out the problem. After replacing my plugs I noticed that a vacuum line next to the 6th cylinder had come out. Well it just so happens that this particular line controls vacuum to the fuel regulator. Problem solved, kinda. I'm still getting a little roughness in idle, with a touch out rattling around my headers...lovely. Probably a different problem.

Hmm well I replaced those two about 5 months ago. Maybe they are lose?

I have a 92 Pathfinder and today after I had to replace some defective spark plug wires, I notice that my Idle is rough and fluctuating. This wasn't the case with the old wires which were defective. I'm thinking maybe I put too much di-electric grease on the boots? Could it be something else and just bad timing? Its weird the idle will be fine, then it will start going up and down for no reason.

That's a negative, unless autozone sold me the wrong resistor which matches up perfectly with my connectors.

I checked, nothing. Its weird, it will work fine with the key in on, no engine running, but after like 5 min with the engine on it blows. Someone told me that its probably the ECU, which I hope isn't the case.

I have a 92 pathfinder and so far in the past month, I have managed to go through 3 blower motors. I have already replaced the resistor, which by the way had a nice bird's nest in the evap core. Could something else be at play here? Maybe the thermal control unit is bad as well. I haven't really heard of blower motors going out after you replace the resistor.

I completely agreed with that guy. It sounds like the o2 sensor. Try unplugging your o2 sensor and drive around for a bit. This will default the computer back to open mode. If you notice a difference, then o2 sensor for sure.

So that red crap that Valvoline sells should be cool? I just don't wanta F-up my 4x4 hubs.

So its kinda interesting, according to the schematics, the 4x4 hubs don't actually have in wheel bearings in them? So what do I pack the grease into?

What would be the best bearing grease to use on auto hubs for a 92' 4x4? It seems like so many people have a stance on this. I'm sure standard red stuff will do the job, but I'd figure some input would help me from screwing up the hubs.