My First 2jz build and it's a Lexus - Page 4 - Lexus IS Forum
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post #46 of 47 (permalink) Old 04-13-2016, 02:37 AM Thread Starter
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Now that the hard parts are done, now its time to move on to the intake, valve cover, waterpump, pulleys, the whole head, ie valves, retainers, springs, cams, custom -an fittings to the valve cover towers. So much to do yet. Stay tuned.
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post #47 of 47 (permalink) Old 04-13-2016, 06:16 AM
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So come to find out that when removing the exhaust system, this thing has 4 O2 sensors..... 4..... why in the all that is good would you have this many.. not even my 2012 cummins has that many. 2 pre cats, 1 post cat, and 1 mid pipe... that is ridiculous . I was how ever able to remove 1 lol that in and of it self is a victory in my books. But no seriously Lexus???
2 primary cats and and 02 in front of each one and an 02 behind each one. Fairly typical for an inline 6. The whole point of the secondary 02's is to measure how well the cats are working. That's why you have one secondary per primary cat.

For all the work you're doing, I'd have probably yanked the entire drive train as a unit. Or dropped it out from underneath since you have a lift. Would make the whole process easier.
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