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post #76 of 258 (permalink) Old 02-13-2009, 12:50 PM
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this what I get:
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post #77 of 258 (permalink) Old 02-13-2009, 01:28 PM Thread Starter
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Try this one...

https://my.is/forums/f67/is300-p0161-...ee-fix-342692/

I coalesce the vapor of human experience into a viable and logical comprehenshion.
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post #78 of 258 (permalink) Old 02-13-2009, 02:11 PM
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^^Thanks it works +rep for the help

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post #79 of 258 (permalink) Old 03-10-2009, 09:01 AM
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I has used seafoam engine cleaner in my gas tank. long story short it clogged my cat, the one that is closest to the back. so i had it cut out as a temp. fix and had a straight pipe welded in. where can i find a used or cheap cat so my CEL will stay turned off?
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post #80 of 258 (permalink) Old 05-26-2009, 08:19 PM
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Great FAQ! +rep

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post #81 of 258 (permalink) Old 06-04-2009, 08:19 PM
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*Just a note

My experience on my P0037 code: oxygen sensor problem B1S2. After changing my spark plugs SK16s, (now the car freaking flys!)
The P0037 cel code was gone for a longer period of time because I can get the code back easily if I push the car hard.

So now I will just replace the sensor.

2003 IS300 5spd M, w/L.S.D.
Mods:Joe-Z Intake w/K&N, Koni Yellow, L-Tuned Sways, Figs Cd³, Goodridge BLs

Last edited by ToAsTYE55; 06-06-2009 at 12:23 PM. Reason: Sad....
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post #82 of 258 (permalink) Old 10-07-2009, 07:14 PM
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Hi, I got a question,

If my car is triggering only a P0174 code, does that mean the problem is focused on the O2 sensor at B2S1 or could it possibly still be airflow sensor or fuel injector or something else?
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post #83 of 258 (permalink) Old 10-08-2009, 03:40 PM
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O2's the last thing you wanna check. search for vacuum leaks, clean and inspect the MAF sensor, test the fuel pressure. do some searching on the site based on the code. there are more detailed scenarios mentioned that might help you narrow down your problem.

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post #84 of 258 (permalink) Old 10-15-2009, 06:42 PM
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the reason why I assumed that it is O2 is because MAF would trigger both codes, P0174 and P0171, and from my small understanding fuel pressure should trigger both as well. I have checked vacuums and have not noticed any damage or holes. Driving the car for a bit I have noticed no difference in performance nor any changes in noise or vibrations.

Could any of this help narrow down the cause of my problem?
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post #85 of 258 (permalink) Old 10-16-2009, 07:37 AM
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Quote:
Originally Posted by Spedmen View Post
the reason why I assumed that it is O2 is because MAF would trigger both codes, P0174 and P0171, and from my small understanding fuel pressure should trigger both as well. I have checked vacuums and have not noticed any damage or holes. Driving the car for a bit I have noticed no difference in performance nor any changes in noise or vibrations.

Could any of this help narrow down the cause of my problem?
Wifey's car (not an IS300) is throwing the exact same codes. I replaced the MAF but it didn't fix the problem. Checking the vacuum tubes too. I'm now thinking I might have to take it somewhere to get the fuel pressure/filter checked.

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post #86 of 258 (permalink) Old 10-20-2009, 02:08 PM
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Quote:
Originally Posted by mtxis View Post
O2's the last thing you wanna check. search for vacuum leaks, clean and inspect the MAF sensor, test the fuel pressure. do some searching on the site based on the code. there are more detailed scenarios mentioned that might help you narrow down your problem.
now im really concerned, CEL went off, not the first time, but is yet to come back,3 start ups and 100 miles later. I doubt the problem could have fixed itself. What should I do now
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post #87 of 258 (permalink) Old 10-20-2009, 07:15 PM
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OK, whats the deal with the O2 PN: 89465-53190 v/s -53150? I have a P057 / B2S2 code on my '03. Is the '150 and '190 interchangeable?

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post #88 of 258 (permalink) Old 03-05-2010, 09:22 AM
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If i am not mistaken i had the 02 simulator done by the way of aftermarket headers and removing the cat. It turned off my CEL but my gas mileage was still less than desirable and i am def. running rich but no CEL. a few months down the road after getting it done i am having problems, sputtering and stalling. The computer brings up no problems but states my 02's are slow to respond. Now i have a tech at Toyotech trying to figure it out.

Last edited by LETHLEX; 03-05-2010 at 01:02 PM. Reason: spelling
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post #89 of 258 (permalink) Old 03-25-2010, 12:29 PM
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I'm getting code P0135. Can I do a similar quick fix as done for P0161 by tapping the B1S1 heater wire to the B2S1 heater wire?
Thanks
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post #90 of 258 (permalink) Old 04-29-2010, 01:24 PM
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Car is throwing code P0161 which is B2S2. Decided I would actually replace and fix it rather than do the free fix. Just thought I'd share my price findings with others:

Part Number - 89465-53120
B2S2 for '01 IS300 (103k miles)

Lexus of Wilmington (local stealership) $177.27
Iron Toad $141.82 + shipping
Denso $114.74 + shipping

Went with the Denso and found a 10% off coupon

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