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  1. General Discussion (Gen 2)
    Hi guys, Just joined the forum and so far a WEALTH of information. Is the Upstream Bank One, Sensor One on the R or L side (Passenger or Driver side)? Autozone has 2 different part numbers so I imagine it isn't the same part unless they are complicating things. Thanks in advance.
  2. Problems & Issues
    The only drawing I have isn't very clear on the locations of these. I am having multiple random misfires on 2,4,6 cylinders which is causing it to throw other codes related to bank 2. I cleaned the maf sensor as well as the camshaft position sensor. The camshaft sensor did have some metal...
  3. How To Guides / Do It Yourself Instructions
    The only drawing I have isn't very clear on the locations of these. I am having multiple random misfires on 2,4,6 cylinders which is causing it to throw other codes related to bank 2. I cleaned the maf sensor as well as the camshaft position sensor. The camshaft sensor did have some metal...
  4. General Discussion (Gen 1)
    Hello, My sienna is 2000 XLE with check engine light on. The code is P0155, Bank 2 Sensor 1. 1. Is the sensor located on the exhaust manifold that faces the radiator? 2. I have checked the part no. on densoaftermarket.com, I think it is 234-4622. Did I get the right part no.?(not california)...
  5. General Discussion (Gen 3)
    2011 Sienna LE Does anyone know the location of the bank 2 sensor 2 oxygen sensor? My VSC check system light is on and the dealer gave me the code "P0057 -B2S2 Oxygen sensor circuit low voltage" Dealer quoted 550$ for the repair. 2h labor and about 300$ for the part. I think I can do it...
  6. General Discussion (Gen 2)
    2007 Sienna 112,600mi. Check engine light came on, Read code P2197 - Air Fuel Ratio Sensor. Thought I should replace that sensor. (This has happened once before, but I reset the light to see if the MIL would come on again. Read on...) Now this morning, I did NOT reset the light, but when I...
  7. Problems, Maintenance, and Repair (Gen 2)
    Got this DTC today : P2197 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 I know there was a TSB on earlier model Sienna's (04'-'06) but is this normal on a '08? And also, does anyone have an idea what the part cost is? Is this the pre-cat sensor or post-cat? Thanks !
  8. General Discussion (Gen 2)
    I have the error P2241 which indicates Bank 2 Sensor 1 O2 is bad but doing a search on Bank 2 Sensor 1 is giving me conflicting results on which sensor it is. Some say that its the sensor in the front (cylinders 1, 3, 5 near radiator) while others are saying that its the sensor in the back near...
  9. Problems & Issues
    I thought that I would add some information on this sensor......Repair manual says to remove front passenger seat to access......not required.....you only need to remove the trim panel on the left side of the passenger seat.....the one right along the carpet......3 philips screws......pull back...
  10. TSB's, Recalls, Warranty Issues
    ENGINE BANK 1 AND BANK 2 O2 IDENTIFICATION SUMMARY: This service bulletin provides information on the proper identification of engine bank 1 and engine bank 2 for correct A/F sensor and oxygen sensor replacement. This bulletin contains information that identifies engine bank 1 and engine bank...
  11. Sienna Insiders (TSBs & Other Info)
    ENGINE BANK 1 AND BANK 2 O2 IDENTIFICATION This service bulletin provides information on the proper identification of engine bank 1 and engine bank 2 for correct A/F sensor and oxygen sensor replacement. This bulletin contains information that identifies engine bank 1 and engine bank 2 on the...
  12. How To Guides / Do It Yourself Instructions
    Over the past five years I have owned two 2nd generation Siennas - 2004 and 2006 model years. I have been stuck in snowbanks twice, once with each vehicle. In both cases the tow truck operator didn't find any proper tow points. In one case (being towed out backwards), his cable popped a body...
  13. General Discussion (Gen 1)
    It's a 1999 XLE and it's been almost 4 months since I had determined that the Bank 1 AF Sensor California Spec'ed was bad but have yet to be confirmed. I have to drop the ECM.. Don't really know how to go about since the 2 bolts are hard to get to. Based on prior assistance, it's said that the...
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