Anyone know the best/least expensive retailer for these parts for a new exhaust system on my '91 FJ80? Thanks for any input
O2 sensors and high-flow cat (1 Viewer)
- Thread starter Reconn1
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I have purchased from sparkplugs.com in the past with great results. I just purchased two new ones for my cat.... and i'm getting PO420 engine code. Haven't figured out why yet. Both sensors are bench testing perfect.
This is with a 2.5 inch high flow magnaflow spun cat and a dynomax muffler.
This is with a 2.5 inch high flow magnaflow spun cat and a dynomax muffler.
- Thread starter
- #4
What'd you end up spending for sensors, cat and dynomax total?
Darn, i will have to pull my old receipts... If memory serves me, sensors were approximately $65 & $75 plus shipping. The cat was $75 plus shipping and i don't recall how much the muffler was.
I was just told today by by someone on the board that you need to lift the rear oxygen sensor slightly out of the exhaust so it reads correctly since you are using a high flow single cat. The double stock cat system is more restrictive so with the high flow cat in place the rear sensor is getting too much exhaust flow. I'm going to try that over the weekend and get back to the board on it.
I was just told today by by someone on the board that you need to lift the rear oxygen sensor slightly out of the exhaust so it reads correctly since you are using a high flow single cat. The double stock cat system is more restrictive so with the high flow cat in place the rear sensor is getting too much exhaust flow. I'm going to try that over the weekend and get back to the board on it.
Well if your 91 is set up anything like my 93, (different engines I know), you have 2 pre cat o2 sensors. ConcreteJungles issues above stem from having one sensor before and one sensor after the cat. On my 93, I have stock 02 sensors in the stock position with a high flow magniflow cat and muffler. No codes since install (6 months.) I dont have any idea where you would get good deals though as I just had the exhaust shop purchase the right stuff that they thought would work. I would not fuss around with non oem O2 sensors though.
true, i did forget you were an earlier model. However, the prices for the sensors are pretty good at spark plugs.... no affiliation.
- Thread starter
- #8
Where did you purchase the cat for that price? And I'm looking at the Denzo sensors from sparkplugs.com, is this what you went with? Thanks again
I got my replacement O2 sensors from sparkplugs.com. I have order an alternator, starter, AC compressor, all from them with great success.
dont know if op purchased there, but i got the magnaflow universal cats for 60 each at summit.
Sorry i wasn't very clear. I was talking about just the oxygen sensors... i purchased them from sparkplugs.com. The exhaust stuff i got from summit racing.
