Jan 7/29/2011

2005 Mini Cooper S 4Cyl1.6L - Engine

Follow

05 Cooper S check engine code P136

I cleared the code and the check engine light was off for about a week. Now it's back on. looks like it's the downstream O2 sensor. I saw a TSB listed about this code but couldn't read the complete message. I have a new sensor to put in. Guess the best thing is to check the connector etc. before replacing. The car has 37,000 miles. Thanks!

Answer This Question

Follow Question what's this?

( characters left)

Add Answer Community Guidelines

answers

• 
  Jimm 7/29/2011

  P0136 = Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)
  Possible symptoms = Poor fuel mileage, possible misfire, depending on O2 sensor position when sticking.
  
  A code P0136 may mean that one or more of the following has happened:
  
  Faulty O2 sensor leak in exhaust close to O2 sensor
  Short to voltage on O2 signal circuit
  Open in circuit resistance caused by corrosion in connector
  
  Possible Solutions:
  Replace the second oxygen sensor on bank 1
  Repair open or short in signal circuit
  Clean corrosion from connector

  Reply

  0