Question about Honda Accord

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Engine light came on while driving on highway for 30 minutes

Connected car to code reader, code PO 128 appeared. 2009 Honda Accord. 32,000 miles

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Po128 cooling system preformance, this can be caused by a bad thermostat or fan relay, if the fans are staying on to long and last a bad coolant temp sensor, this car uses two coolant temp sensors, the best way would be with a scan tool to watch the sensor values and see if there are ok, this being a 2009 honda with 32,000 miles , this type of problem is not seen to often. check connections to sensors and make sure wiring is ok,

Posted on Jan 16, 2013

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Posted on Jan 02, 2017

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SOURCE: my check engine light came on 2004 ford taurus had

P174 means Oxygen sensor was slow in switching Single, Right or Rear HO2S - Fuel control

P171 means Oxygen sensor not switching - system was at adaptive limits - Single, Right or Rear HO2S - Fuel control

Visit http://www.troublecodes.net/Ford/
for a comprehensive code listing for your car.

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Posted on Jan 08, 2010

  • 14036 Answers

SOURCE: The thermostat does not work and the fan stays on

YOU FAULTY COOLANT SENSOR OR PCM.

Posted on Mar 28, 2010

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