Hey all,
Its been a fast summer, and I've been so busy I haven't been spending much time here at the forum.
2005 Pathfinder, just clocked 360000km (224000mi). It needs an exhaust. I think I've settled on the standard walker replacement, though I've had some thoughts on the Bosal kit that is out there, as it looks a little more sturdy, and is actually a few bucks less in cost. All in, it will cost about $350 canadian to get the required exhaust parts, clamps and seals. Not too shabby!
However, I've been driving around with the P0420/P0430 code (Catalyst efficiency error) for probably about the last 10 years or so. No joke! If I reset the CEL while driving down the highway, it does not come back, until I start driving in town or starting and stopping. Then it comes back on right away.
I did my Fuel/air sensors about 5 years ago, replaced with Denso. I'm thinking they should be done again.
I also noticed that my Short Term Fuel Trim is sitting around 10-15% while driving at highway speeds.
I found a place here in Canada that sells replacement Catalytic converters for about $100 each. Here's what I was thinking:
1. Replace exhaust system. $350
2. Replace Front Catalytic Converters (premierautoexhaust.com) - $200
3. Knock a hole through the catalyst on the rear catalytic converters. They are not monitored anyways.
4. Replace all 4 O2/FA Sensors (either Denso or NGK) - $400
5. Replace MAF Sensor (Hitachi) - $80
6. Replace Spark Plugs (NGK 96355) - $50
After all this, I figure I'd be good for another 400k. For about $1100 canadian.
The only thing I figure I'm ignoring is Fuel Injectors... not sure if they should be done if there is no code associated with them.
Thoughts?
t