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2006 Toyota Sienna CE 5dr FWD 7-Passenger (GS)

2006 Toyota Sienna
Trim Info:
Front Wheel Drive, 5 Door Reg WB, 2WD Minivans
19 mpg city / 26 mpg hwy
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December 28, 2012, 11:26 am

Robert H
 

Question: OBD codes , check engine light flashing

I have a 2000 Toyota Sienna. My wife was driving and said the check engine light was flashing and the van was acting as if it had water in the gas. I checked the codes and have 5: PO305,PO420,PO300,PO305again,and PO171. Can you help point me in a direction?


January 5, 2013, 7:08 pm

Elizabeth K
Expert Mechanic

When you've got lots of codes, you've got to come up with a likely hypothesis, and start troubleshooting from there. The p0300 and p0305 codes are for a misfire, which could cause the p0420. And the p0171 could cause the p0420, so starting with the p0171 is a good idea. Below are some links that you can read to get familiar with those codes, and see what can cause them and what to test.

p0171 http://www.obd-codes.com/p0171

p0420 http://www.obd-codes.com/p0420

p0300 http://www.obd-codes.com/p0300

p0305 http://www.obd-codes.com/p0305


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