O2 sensor advice needed
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Elder User
Joined: Mar 2004
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From: El Dorado Co., CA.
O2 sensor advice needed
Hey all,
I'm in the middle of swapping the CAT on my 99 E150. I'm going to replace the 2 upstream and 1 downstream O2 sensors. It's the least I can do since i ran it with a hollowed out CAT for 2 years. I'd sure like to go cheap and get some Ultrapower sensors from rockauto.com for 20 bucks a piece; however, I still need to pass Calif. emissions.
Does anyone have any experience with cheaper O2 sensors?
Thanks,
Danny
I'm in the middle of swapping the CAT on my 99 E150. I'm going to replace the 2 upstream and 1 downstream O2 sensors. It's the least I can do since i ran it with a hollowed out CAT for 2 years. I'd sure like to go cheap and get some Ultrapower sensors from rockauto.com for 20 bucks a piece; however, I still need to pass Calif. emissions.
Does anyone have any experience with cheaper O2 sensors?
Thanks,
Danny
Junior User
Joined: Feb 2005
Posts: 73
Likes: 1
What engine do you have and where are you buying your cats? My E-150 conversion van 4.6 cats are starting to rattle. The direct OEM bolt-in cats are very expensive. like 5-6 hundred a side. I did find one company "Eastern" that they are about $300 a side.
As for the O2 sensors, I bought all four (2 upstream, 2 down stream) from Rockauto. Since I have installed them I have not have any codes come up as I did before. Before I got the van someone had installed High Flow cats in the system, these are the ones that are starting to rattle. My van from the factory had 4 cats, two pre cats and two after cats on each side. there are only two high flow cats in there now and I have no codes. My emission testing past with flying colors. So now that they are rattling, do I replace them with High Flow cats and weld them in as they are now or buy the OEM bolt in?
I believe you need to buy cats that are approved for installation in Cal. and it is my understanding they are more money. Is this correct?
I believe I bought Bosh 02 sensors from Rockauto. I didn't go with the cheap ones, afraid I would be changing them again if I did.
As for the O2 sensors, I bought all four (2 upstream, 2 down stream) from Rockauto. Since I have installed them I have not have any codes come up as I did before. Before I got the van someone had installed High Flow cats in the system, these are the ones that are starting to rattle. My van from the factory had 4 cats, two pre cats and two after cats on each side. there are only two high flow cats in there now and I have no codes. My emission testing past with flying colors. So now that they are rattling, do I replace them with High Flow cats and weld them in as they are now or buy the OEM bolt in?
I believe you need to buy cats that are approved for installation in Cal. and it is my understanding they are more money. Is this correct?
I believe I bought Bosh 02 sensors from Rockauto. I didn't go with the cheap ones, afraid I would be changing them again if I did.
Thread Starter
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Elder User
Joined: Mar 2004
Posts: 588
Likes: 0
From: El Dorado Co., CA.
I got my CAT from eastern as well. It's a direct OEM fit. I have the 5.4 liter engine. I have only 1 CAT. It's huge. I've heard it referred to as a "torpedo" cat. lol.
They wanted 2200 bucks at the dealership for the cat. I got mine from Rockauto for just over 300. it's not a california cat, but i'm going to take a risk that the smog guys wont look. My good friend (mechanic) told me that most smog guys wont look under a vehicle unless needed. I actually told one of the smog guys that I go to what I was going to do and he laughed and told me to get it nice and dirty before coming in so it wouldn't stand out. lol. I only have 3 O2 sensors, 2 upstream and 1 downstream. Autozone wanted 50 bucks a piece, I got 3 bosch from rockauto for 30 bucks each. I've had my battery disconnected for a few days to clear the check engine light. I'm going to put it all together this weekend and see how it goes. If worse comes to worse, and I get "caught", i'll ask my friend in the next county if I can use his address to register my van; his county does not require bi-annual smog.
They wanted 2200 bucks at the dealership for the cat. I got mine from Rockauto for just over 300. it's not a california cat, but i'm going to take a risk that the smog guys wont look. My good friend (mechanic) told me that most smog guys wont look under a vehicle unless needed. I actually told one of the smog guys that I go to what I was going to do and he laughed and told me to get it nice and dirty before coming in so it wouldn't stand out. lol. I only have 3 O2 sensors, 2 upstream and 1 downstream. Autozone wanted 50 bucks a piece, I got 3 bosch from rockauto for 30 bucks each. I've had my battery disconnected for a few days to clear the check engine light. I'm going to put it all together this weekend and see how it goes. If worse comes to worse, and I get "caught", i'll ask my friend in the next county if I can use his address to register my van; his county does not require bi-annual smog.
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