94' OBD Codes
#3
I did and the CEL is gone.
Now I have to deal with the lack of power.
I'm almost positive that the original cat is on the Blazer. The old O2 sensor was just about powder coated black so I'm thinking it is time to replace. There is hardly anything coming out of the exhaust pipe. If that doesn't do it I'll replace the muffler.
The symptom I'm seeing is that when first started it seems alright. Not full power but enough to get me where I'm going without too much trouble. After a few miles it dogs a bit more. It takes a while to get up to speed. No backfires, just anemic.
If I still have an issue I'll look at replacing the spider.
Now I have to deal with the lack of power.
I'm almost positive that the original cat is on the Blazer. The old O2 sensor was just about powder coated black so I'm thinking it is time to replace. There is hardly anything coming out of the exhaust pipe. If that doesn't do it I'll replace the muffler.
The symptom I'm seeing is that when first started it seems alright. Not full power but enough to get me where I'm going without too much trouble. After a few miles it dogs a bit more. It takes a while to get up to speed. No backfires, just anemic.
If I still have an issue I'll look at replacing the spider.
Last edited by tlamana; 07-18-2015 at 01:45 PM.
#4
I replaced the cat and it seems to have helped, at least with the exhaust. I can feel a marked improvement in what is coming out of the tailpipe. I will have to replace the muffler as I saw where it has separated on the back seam.
My drive home indicates there is some more power but I won't know for sure until I drive her to work. If I don't see the same response then there is an improvement. I just don't think it solved my problem. After replacing the O2 sensor I haven't had the CEL light pop up.
I think I need to look at the spider next but I would like confirmation.
Should I disconnect the battery to reset the ECM?
My drive home indicates there is some more power but I won't know for sure until I drive her to work. If I don't see the same response then there is an improvement. I just don't think it solved my problem. After replacing the O2 sensor I haven't had the CEL light pop up.
I think I need to look at the spider next but I would like confirmation.
Should I disconnect the battery to reset the ECM?
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abadinalbany
2nd Generation S-series (1995-2005) Tech
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04-16-2011 11:31 AM