I finally had to fix up the exhaust on my truck. Had multiple leaks and clogged cats.
Wife doesn't like the result but I love it.
Cats removed, Centre Muffler still there and both rear exhausts removed.
I think we need to hear it :)
Looks good though!
My cats are still there but with nothing inside them, I bashed the guts out with a hammer and big chisel. Still got the tailpipe silencers and centre box though and I must admit I was a little disappointed with the lack of extra noise but you can hear it when the throttle is floored.
I can't see any of the replies to this post for some reason?
I think there is a gremlin here.
I cant see updates on this post.
Why can I only see the original post? Not even my replies?
And? How about the O2 sensors, no CEL? What's the sound now?
I wonder why I can't see any of the 7 posts- just the initial photo!
I don't know what that imgur link had going on but it loaded some stuff that really, really broke the forum. Sorry folks.
You may also have spotted a weird blip a few minutes ago when I cocked up removing the offending bit of javascript. Anything posted in the last ten minutes (ie. between 19:30 and 19:40 today) is likely lost.
Ferryman wrote:
And? How about the O2 sensors, no CEL? What's the sound now?
Video posted. No CEL which tells me the O2 sensors are not reporting correct. I have been meaning to monitor them to see but have not had a chance.
You'll have upstream and downstream O2 sensors on yours, we only get the upstream ones on rest of world spec cars, but just because you've done away with the cats doesn't necessarily mean you'll get a CEL. The upstream sensors will be doing what they have always done, checking the emissions and causing the fuel trims to adjust to keep the mixture correct. The downstream sensors are there to check that what is coming out of the cats is clean and it will be if the upstream ones are doing their job properly.
I recently converted my truck from SAI to non-SAI. I don't know whether this would make a difference. Did the non-SAI have the rear sensors?
You won't get a CEL for oxygen sensors. I've yet to find anything that puts that light on, other than the second or so it comes on while the ECU self-tests.
Don't get me wrong I'm happy it didn't come on! :)
Only US spec cars had SAI and downstream O2 sensors, none of the rest of world cars had either of them. US cars also run different firmware in the ECU to bring the CEL on if even the slightest little thing is found wrong whereas you can abuse the others and it still won't come on. I've run mine with intake temperature sensor, O2 sensors, MAF sensor, TPS, knock sensors and just about everything else to see if it will still run without them and still never seen the CEL. On a US car it'll come on if the wind is in the wrong direction......