Does he really know what he is doing?
08-06-2010, 08:22 PM
#1
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Air Fuel Meter??
Just had new spark plugs put in my 2004 RX 8 (55,000 miles.). My engine light came on 1 day after the job was done. I took it to Auto Zone and the codes P0037and P0302 came up on their scanner. I have a friend who is a mechanic and he took my RX8 and checked it out and said that it was the AIR FUEL METER. (The part alone is $260). He also said that even if he puts that part in it still may be something else. He also told me that he could not check the coils until the air fuel meter was insalled. Does this sound right?
Last edited by rxrated; 08-06-2010 at 11:15 PM.
08-06-2010, 08:31 PM
#2
Who did the install? Dealer?
Did they use NGK RE7 and RE9 spark plugs?
Verify none of the plug wires came loose.
Might want to verify the spark plugs are connected to the correct coils:
The sensor (from the P0037 code) is the rear O2 and monitors the efficiency of the catalytic converter.
Usually that points to a bad cat... possibly caused from poor ignition.
But it usually isn't the sensor itself.
The P0302 is a misfire on the rear rotor.
Since an ignition component was replaced recently, this is a good place to start.
Did they use NGK RE7 and RE9 spark plugs?
Verify none of the plug wires came loose.
Might want to verify the spark plugs are connected to the correct coils:
The sensor (from the P0037 code) is the rear O2 and monitors the efficiency of the catalytic converter.
Usually that points to a bad cat... possibly caused from poor ignition.
But it usually isn't the sensor itself.
The P0302 is a misfire on the rear rotor.
Since an ignition component was replaced recently, this is a good place to start.
Last edited by Jon316G; 08-06-2010 at 08:39 PM.
08-06-2010, 11:51 PM
#3
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sounds like your friend is reading from a book....coils are cheaper to replace and those can definitely be replaced.....if they are due to be replaced it can't hurt then....but more than likely an install issue on the plug or plug wires. good luck.
08-07-2010, 10:41 AM
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Who did the install? Dealer?
Did they use NGK RE7 and RE9 spark plugs?
Verify none of the plug wires came loose.
Might want to verify the spark plugs are connected to the correct coils:
Attachment 160479
The sensor (from the P0037 code) is the rear O2 and monitors the efficiency of the catalytic converter.
Usually that points to a bad cat... possibly caused from poor ignition.
But it usually isn't the sensor itself.
The P0302 is a misfire on the rear rotor.
Since an ignition component was replaced recently, this is a good place to start.
Did they use NGK RE7 and RE9 spark plugs?
Verify none of the plug wires came loose.
Might want to verify the spark plugs are connected to the correct coils:
Attachment 160479
The sensor (from the P0037 code) is the rear O2 and monitors the efficiency of the catalytic converter.
Usually that points to a bad cat... possibly caused from poor ignition.
But it usually isn't the sensor itself.
The P0302 is a misfire on the rear rotor.
Since an ignition component was replaced recently, this is a good place to start.
08-07-2010, 04:34 PM
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P0037 is a code for the rear 02 sensor, I believe the heater circuit for the sensor. Either the 02 needs replaced or you have a wiring problem. Check your fuses as well. If the fuse for the heater circuit is blown it will trigger the code.
