I don't have access to a compression tester at the moment but today I am going to go ahead and change the intake manifold gasket with the orange one as well as the valve cover gasket. Haven't decided if I just want to knock those out and see what happens or do those and swap in a remanufactured injector at the same time.
At least you can order those separately, and you had a functional one to use for now.
Always wondered about that replacement - we do have _two_ cats on the OEM.zbyers wrote: ↑Thu Sep 05, 2019 3:38 am P0420 indicates the o2 sensors are working properly as it's detecting the cat is below efficiency thresholds, so that would not be the o2 sensors.
Nearly 100% of the time it means the converter is on it's way out. Depending on your location, you could add a defouler to the downstream o2 and call it a day. otherwise the solution is to replace the cat.
Magnaflow 99205HM is a great fit. $100 part, $50 weld job at a local exhaust shop.
Yeah, I've been curious too.. The shop that did mine did the downstream one, and I never had another issue. But afterwards, I questioned if it should have been the upstream cat, since the lower one isn't even monitored by the o2 sensors. Logic says it should be the upstream cat that needs replaced.Bookworm wrote: ↑Thu Sep 05, 2019 11:25 amAlways wondered about that replacement - we do have _two_ cats on the OEM.zbyers wrote: ↑Thu Sep 05, 2019 3:38 am P0420 indicates the o2 sensors are working properly as it's detecting the cat is below efficiency thresholds, so that would not be the o2 sensors.
Nearly 100% of the time it means the converter is on it's way out. Depending on your location, you could add a defouler to the downstream o2 and call it a day. otherwise the solution is to replace the cat.
Magnaflow 99205HM is a great fit. $100 part, $50 weld job at a local exhaust shop.
When I replaced the cat on my '03, I just bought a direct replacement, with dual cats. Paid someone else $50 to put it in with the two replacement O2 sensors (they had a lift, I didn't). I'll probably do that with this car sometime in the next 20k miles. Yes, it cost a bit more than $100, but I knew everything would just _work_zbyers wrote: ↑Thu Sep 05, 2019 11:29 amYeah, I've been curious too.. The shop that did mine did the downstream one, and I never had another issue. But afterwards, I questioned if it should have been the upstream cat, since the lower one isn't even monitored by the o2 sensors. Logic says it should be the upstream cat that needs replaced.Bookworm wrote: ↑Thu Sep 05, 2019 11:25 amAlways wondered about that replacement - we do have _two_ cats on the OEM.zbyers wrote: ↑Thu Sep 05, 2019 3:38 am P0420 indicates the o2 sensors are working properly as it's detecting the cat is below efficiency thresholds, so that would not be the o2 sensors.
Nearly 100% of the time it means the converter is on it's way out. Depending on your location, you could add a defouler to the downstream o2 and call it a day. otherwise the solution is to replace the cat.
Magnaflow 99205HM is a great fit. $100 part, $50 weld job at a local exhaust shop.
interesting. so that's both pipes that takes it to where it goes over the rear crossmember?Bookworm wrote: ↑Fri Sep 06, 2019 7:59 pm This is what I used.
https://www.discountconverter.com/direc ... ctID=44103
It's just under $500, but a direct fit, and high quality. Their Houston office is just up the street from me.
Yes, it's the exhaust all the way to the muffler flange.Browning wrote: ↑Sun Sep 08, 2019 6:24 pminteresting. so that's both pipes that takes it to where it goes over the rear crossmember?Bookworm wrote: ↑Fri Sep 06, 2019 7:59 pm This is what I used.
https://www.discountconverter.com/direc ... ctID=44103
It's just under $500, but a direct fit, and high quality. Their Houston office is just up the street from me.
This.zbyers wrote: ↑Mon Sep 09, 2019 3:24 amYes, it's the exhaust all the way to the muffler flange.Browning wrote: ↑Sun Sep 08, 2019 6:24 pminteresting. so that's both pipes that takes it to where it goes over the rear crossmember?Bookworm wrote: ↑Fri Sep 06, 2019 7:59 pm This is what I used.
https://www.discountconverter.com/direc ... ctID=44103
It's just under $500, but a direct fit, and high quality. Their Houston office is just up the street from me.
No idea what affirm might be, but go for it, as it's an exact replacement. Although since the OEM passes CARB, I don't know how they can call it an 'exact' replacement. The one I posted, I believe, does pass carb.Browning wrote: ↑Thu Oct 03, 2019 4:28 am Thanks for the replies and sorry I am just now responding. I went ahead and ordered this one
https://www.carid.com/2005-pontiac-vibe ... 62880.html
Main reason I went this route is the ability to use affirm.
yea that was my mistake I didn't think I needed to order a CARB compliant system. I contacted them right after posting and they are in the process of switching it out with this oneBookworm wrote: ↑Thu Oct 03, 2019 8:38 amNo idea what affirm might be, but go for it, as it's an exact replacement. Although since the OEM passes CARB, I don't know how they can call it an 'exact' replacement. The one I posted, I believe, does pass carb.Browning wrote: ↑Thu Oct 03, 2019 4:28 am Thanks for the replies and sorry I am just now responding. I went ahead and ordered this one
https://www.carid.com/2005-pontiac-vibe ... 62880.html
Main reason I went this route is the ability to use affirm.
I'm not sure how it they should measure either... My measurement device stops when my hand starts burning