System Too Lean At Idle P2187
I have a 2006 Sonata with about 40,000 miles on it. Recently the check engine light came on, and checking the codes revealed a P2187, System Too Lean At Idle Speed.There were no other codes. I cleaned the MAF sensor. Checked for vacuum leaks as best I could and found none. I also checked the air filter and it is clean. I cleared the code, but the check engine light came back on within a day, revealing the same trouble code.
Does anyone have any suggestions on what else to try? I'm thinking it is probably an oxygen sensor, but which one? I do not have access to an OBDII tool that can do real-time analysis. |
RE: System Too Lean At Idle P2187
Warranty = 10y/100k miles (5y/60k miles if used)
Your car = 3y/40k miles Why don't you just take it to the dealer to have it fixed under warranty for free? |
RE: System Too Lean At Idle P2187
I have a 2006 Sonata with about 40,000 miles on it. Recently the check engine light came on, and checking the codes revealed a P2187, System Too Lean At Idle Speed. |
RE: System Too Lean At Idle P2187
The engine is the I4. (Sorry about forgetting some obvious information.) I had thought it could be related to ethanol in the gas, in reference to which gas is used. Currently I use 87 octane, and have always used it.
Why not take it to the dealer? In reading over the complex warranty, it was hard to tell under just what area an oxygen sensor would fall (fuel, emissions, engine)? I came to the conclusion that an oxygen sensor was covered under a shorter period of warranty that had already passed, hence my desire to diagnose and repair the problem myself. |
RE: System Too Lean At Idle P2187
I don't know what you mean by "shorter period of warranty". If you live in the US or Canada, you get 5 years or 60,000 miles if you are NOT the first owner, or 10 years/ 100,000 miles if you are the original owner. Oxygen Sensor clearly falls under the heading of "Powertrain". Take it to the dealer, and just ask them if it's under warranty.
Looks like you're right, it's probably the primary oxygen sensor (the one before the catilytic converter). Be careful cleaning that MAF sensor, they usually don't need cleaning, and it's easy to destroy the element inside. |
RE: System Too Lean At Idle P2187
The engine is the I4. (Sorry about forgetting some obvious information.) I had thought it could be related to ethanol in the gas, in reference to which gas is used. Currently I use 87 octane, and have always used it. |
RE: System Too Lean At Idle P2187
I agree with Ken, ethanol is not the problem. Trust me, your car is still under warranty. Let the dealer diagnoseand fix it for free.
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RE: System Too Lean At Idle P2187
Okay. I will schedule an appointment with the dealer and take it in. I'll be sure to post back what the problem was. Thanks for the help/support!
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The dealer replaced the intake manifold gasket to resolve the problem.
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Originally Posted by bbadger10
(Post 19454)
The dealer replaced the intake manifold gasket to resolve the problem.
Ken |
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