help with p0300 please
help with p0300 please My car threw a p0300 the other night while in idle and the exhaust smells like a big rig.
Here is what I have:
ABSLT 0
Eng Spd 815
load 2.4
MAF 1.0
MAP 12.1
coolant 199*F
st ftrm 1 0.8
lt ftrm 1 3.9
st ftrm 2 0.0
lt ftrm 2 3.9
sp 0
fuel 1 closed
fuel 2 closed
Anything stick out? It's the 99 in my sig. I previously swapped the passenger side rear o2 sensor after it was flooded out by a drive through car wash. That was about 2 years ago. No issues since until now. The exhaust smell has been there for a while. Plugs & wires have about 10k on them. The other 3 o2 sensors are stock. Car has 50k on it.
Here is what I have:
ABSLT 0
Eng Spd 815
load 2.4
MAF 1.0
MAP 12.1
coolant 199*F
st ftrm 1 0.8
lt ftrm 1 3.9
st ftrm 2 0.0
lt ftrm 2 3.9
sp 0
fuel 1 closed
fuel 2 closed
Anything stick out? It's the 99 in my sig. I previously swapped the passenger side rear o2 sensor after it was flooded out by a drive through car wash. That was about 2 years ago. No issues since until now. The exhaust smell has been there for a while. Plugs & wires have about 10k on them. The other 3 o2 sensors are stock. Car has 50k on it.
I pulled the passenger and driver back o2 sensors just to have a look at them. Here is a pic.
The red one was the original passenger side back o2 sensor that got fried when I ran my car through the car wash a few years ago. This has not been in my car since then, just wanted to post it with the pic for others to see.
The middle whitish one is the replacement for the red one. It has about 10k miles on it.
The blackish right one is the original from the drivers side. Now that I see it in the pics, I see a little red tone to part of it.
Suggestions? I don't want to just start spending money on o2 sensors, but this was the problem the last time. I'm not stuck on the o2 sensor idea either, I'm open to suggestions.
The red one was the original passenger side back o2 sensor that got fried when I ran my car through the car wash a few years ago. This has not been in my car since then, just wanted to post it with the pic for others to see.
The middle whitish one is the replacement for the red one. It has about 10k miles on it.
The blackish right one is the original from the drivers side. Now that I see it in the pics, I see a little red tone to part of it.
Suggestions? I don't want to just start spending money on o2 sensors, but this was the problem the last time. I'm not stuck on the o2 sensor idea either, I'm open to suggestions.
Last edited by 2formulas; Dec 17, 2010 at 07:57 PM. Reason: wrong discription
TECH Regular
Joined: Sep 2007
Posts: 443
Likes: 3
From: Kansas City, MO
It's probably not your o2 sensors since your fuel trims look fine. You need to get a good scanner that will tell you which cylinder is misfiring and go from there. You're just guessing otherwise.
