I followed this very guidance you gave me on another, more general thread I started. About a month ago I started with the sensor as close as I could get to the stream while still using a spacer. It gave the same code I'm getting now even though I've been backing it out little by little, and now...
I've been working through the CEL issues associated with installing the long-tube headers and eliminating a catalytic converter. Based on some advice I got here on the forum I added a spacer on the O2 sensors. The passenger side hasn't thrown a code in weeks but the driver's side still is. I...
I'm currently fartin' around with a pair of spacers trying to get my CEL to stay off. It's been a struggle so far but I'm encouraged that other folks are getting it to work.
I've been thinking about my problem with the sensor bottoming out in the spacer and I'm wondering if anyone has any non-OEM sensors to recommend that may be a different length. I see that NAPA carries a Bosch sensor that is shorter than the OEM. With the current sensor/spacer combination I have...
Thanks for the info guys. Unfortunately, I'm not tuned yet. I took some time this weekend to shorten one of the defoulers but now the O2 sensor is a bit too long for it. The sensor bottoms out and basically blocks off any flow past the sensor. I have to get a 9/16 drill bit to enlarge to hole a...
I picked up the code reader that you recommended and took a look at the live data. I did notice a difference between bank 1 and bank 2. I think I mentioned it before but what I did is; I made the modifications to the driver's side defouler and left the passenger side as it was. I wanted to see...
Today I started in on the trial and error path to clearing these damn codes. The first step was to take the upstream defoulers off. Then I removed the drive's side downstream defouler to compare my options and decide which one to install back into the downstream spot. As I said in a previous...
So far I haven't paid anything for the code reading/clearing. Most shops around my area do it for free. I'll probably offer something if I'm going to be stopping by daily while I fiddle with things trying to get it dialed in.
I visited a different mechanic for a new opinion since my regular shop isn't putting any effort into helping me troubleshoot this issue. This guy got in and spent a good 10 minutes monitoring the o2 numbers while he toyed around with the throttle. The results do seem to verify aemravan idea. You...
I know I just posted this in the previous reply, but I'm trying to address each comment specifically. I did install the second set of defoulers, and now have them on all 4 O2 sensors. I swung by my mechanic's shop today and had him give me the codes before he cleared them. The codes were PO138...
Sorry it's taken me so long to reply to your comments. The vehicle runs and drives fine and I work in the opposite direction of my mechanic so I've haven't made it a huge priority. But this weekend we towed our camper and the darn thing smelled like the nasty exhaust that this issue has been...
So if you can believe it, I'm getting conflicting information on dealing with my issue. I called up Doug Throrley HQ, and since CA has such strict cat converter rules, they couldn't offer anything in the way of troubleshooting. They did suggest I call Burtman Industries, which sells lots of...
Thanks for the suggestion. I will share it with my mechanic and see what he thinks.
And yes, it is the case that the traction control and AWD don't function when the check engine light is on, at least in this case. I don't understand why the heck Toyota linked drive-train components to the...
I got a set of Thorley headers installed on my 06 V8 sometime around the beginning of 2022. Ever since, I've been chasing down one code after another. I changed the spark plugs and coils to get rid of a misfire code. I also added defoulers to the O2 sensors. The mechanic cleared some codes...