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Matt, Engineer
Category: Honda
Satisfied Customers: 21999
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
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Idle (RPM) goes low then back up. It is for a friend of

Customer Question

JA: Hi. What seems to be the problem?
Customer: idle (RPM) goes low then back up.
JA: How many miles are on the car? What size is the engine?
Customer: It is for a friend of mine, What other info do you need, I will ask him and come back.
JA: What year is your MiniE?
Customer: It is 2006 Odyssey.
JA: Are you fixing your MiniE yourself? What have you tried so far?
Customer: Yes, he pulled a code for bank 1 sensor bad
JA: Anything else you want the mechanic to know before I connect you?
Customer: No.
Submitted: 1 year ago.
Category: Honda
Expert:  Matt replied 1 year ago.


if you have a code for a faulty o2 sensor the 1st thing to check for exhaust leaks before the O2 sensor as if this has been experiencing an exhaust leak then it will have been running very rich as the sensor will see the extra airpulled in as fresh / lean fuelling and be adding fuel to compensate.

The best way to find an exhaust leak is to run the engine from cold and feel around the exhaust joints with your bare hands - you'll have about 30 seconds before it all gets too hot and you should feel any escaping gas blowing over your fingers

if this is OK then check for damaged wiring and if thats OK, only then replace the sensor

Customer: replied 1 year ago.
Your answer is fine, just need to see the exhaust system and check the leak.
Expert:  Matt replied 1 year ago.


just get back to me on this post