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'00 accord pinging under partial throttle

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  #1  
Old 12-18-2011, 04:07 PM
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Default '00 accord pinging under partial throttle
Ok, so I have a 2000 Accord LX 2.3l, F23a1. I can't figure why it's pinging. It starts pinging at like 40% throttle, but goes away if I push the pedal a bit further. The issue is only present below 3000 rpm. Any ideas why it's pinging? I have new Ngk plugs, and am running 91 octane ethanol free gas. Please help!
 
Last edited by mitbrown; 12-18-2011 at 08:57 PM.
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  #2  
Old 12-19-2011, 12:35 AM
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Is the check engine light turning on while driving? Most auto parts stores will scan the codes as a free service. Post any codes on here. They start with the letter P and have four numbers, like P1234.
 
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Old 12-19-2011, 01:55 PM
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Check engine light is on, I don't remember the exact code number but it
Reads 'catalyst system efficiency below normal'. It came on after I had a test pipe installed.
 
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Old 12-19-2011, 04:06 PM
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Get the codes checked again. You may have a new code that is appearing.
 
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Old 12-19-2011, 04:37 PM
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Ok, I'll pull the codes again when I get off work. But the problem has existed before I ever had the cat removed. I was actually hoping the cat was clogged and the test pipe would solve it, but the pinging is still there.
 
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  #6  
Old 12-19-2011, 05:05 PM
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Stop at an AutoZone...they will check it for you for Free...
 
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  #7  
Old 12-19-2011, 05:55 PM
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catalyst system efficiency below normal can also mean an o2 sensor.
 
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  #8  
Old 12-19-2011, 07:39 PM
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Well I have a plx kiwi Bluetooth adapter so I can pull up the
trouble codes on my phone.

I'll go get new o2 sensors and report back I guess.
What's a good brand o2 sensor for this car?
 
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  #9  
Old 12-20-2011, 05:44 PM
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Originally Posted by mitbrown
Check engine light is on, I don't remember the exact code number but it
Reads 'catalyst system efficiency below normal'. It came on after I had a test pipe installed.
Is this test pipe still installed?
 
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  #10  
Old 12-20-2011, 07:32 PM
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Originally Posted by poorman212
Is this test pipe still installed?
Yes the test pipe is still in place.

Why do you ask?
Would I be better off getting a catalytic converter put back on?
 
Last edited by mitbrown; 12-21-2011 at 12:11 AM.
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