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2003 Toyota Sienna catalist effiniency below threshoold bank 1

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Two things to try, first find your ox sensor mounted close to the first small cat closest to the engine.remove it and scrub it with a small brass brush.reinstall it. Unhook your battery for 10 mints both the pos. and the neg cables.. Drive for a few days to see if the code comes back. if not it's fixed. If the codes comes back find someone with a lazer type thermometer one like you point and shoot to get a temp reading. run your car for 15 mints shoot the cat at it's inlet then at the outlet should be the same, if you have a good difference it is stoped up somewhat and needs replaced. 

Posted on Jul 24, 2009

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P1130 CODE FOR 2000 TOYOTA SIENNA


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Were is circuit bank 2 located on my toyota sienna


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11_4_2012_3_39_55_pm.gif

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Where is bank 1 sensor 2 oxygen sensor located?


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Po420 on my 2001 sienna


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Check engine light on my 2003 sienna, DTC was



Oxygen Sensor Connector locations

513af30.gif


  1. Disconnect the oxygen sensor connector.
  2. Using an ohmmeter, measure the resistance between the terminals +B and HT. Resistance specification: 11 - 16 ohms at 20°C (68°F).
  3. If the resistance is not as specified, replace the sensor.
  4. Reconnect the oxygen sensor connector.

Oxygen Sensor testing

db5ca10.gif


I really hope helped with this. Remember rated this help, good luck.

Nov 30, 2009 | 2003 Toyota Sienna

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Need to know whatDTC's P0420 and P0432 mean for my 2002/3 Jeep Grand Cherokee Laredo 4.7 ltr V8 Thanks Colin


420 is catalist below threshold bank one.
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Oct 20, 2009 | 2002 Jeep Grand Cherokee

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2003 Toyota Sienna dtc p2125


Hi,

I have not come accross a P2225 error code on a Toyota (Sienna). Best I can gather is this error indicates "NOx Sensor Heater Sense Circuit Intermittent (Bank 2)". on an OBDII Code Reader.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 19, 2008 | 2003 Toyota Sienna

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