Help identifying CEL Codes......
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Rennlist Member
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From: Virginia
Help identifying CEL Codes......
Pulling P1115 and P1119. My pocket scanner doesn't list these in the manual.
Oddly enough, the light pops only when the A/C is on.
Can anyone let me know what they represent ??
Many thanks !!
Oddly enough, the light pops only when the A/C is on.
Can anyone let me know what they represent ??
Many thanks !!
Nordschleife Master
Joined: Jun 2005
Posts: 5,351
Likes: 9
From: Neither Here Nor There
P1115 = O2S Heater 1 Ahead of Catalytic Converter Cyl. 1-3
https://rennlist.com/forums/showthre...ighlight=P1115
https://rennlist.com/forums/showthre...ighlight=P1115
Also see this:
https://rennlist.com/forums/showthre...ighlight=P1115
https://rennlist.com/forums/showthre...ighlight=P1115
Also see this:
Originally Posted by viperbob
P1115 - Oxygen Sensor heating side 1 ahead of Cat - below lower threshold
Generally this means a bad heating element in the O2 sensor. It can be other things that you do not want to know about. Remove and seperate the O2 connector in the engine compartment (the grey connector is for behind the cat, and the black one is before the cat). On the connector to the O2 sensor connect an ohmmeter to pins 1 & 2. Specified value is 1.8-2.5 ohms at 20 degrees celcius. Connect the ohmmeter to pin 1 and the 02 sensor housing. Specified value is infinity. Usually you will find too much resistance in the first reading indicating that it is bad.
It is also common to get both the P1115 and P1119 codes together (both O2 sides before cat). This is caused by one of the sensors going bad, but in a way that the ECM with its' diagnostics can not figure which one so both codes are generated.
Generally this means a bad heating element in the O2 sensor. It can be other things that you do not want to know about. Remove and seperate the O2 connector in the engine compartment (the grey connector is for behind the cat, and the black one is before the cat). On the connector to the O2 sensor connect an ohmmeter to pins 1 & 2. Specified value is 1.8-2.5 ohms at 20 degrees celcius. Connect the ohmmeter to pin 1 and the 02 sensor housing. Specified value is infinity. Usually you will find too much resistance in the first reading indicating that it is bad.
It is also common to get both the P1115 and P1119 codes together (both O2 sides before cat). This is caused by one of the sensors going bad, but in a way that the ECM with its' diagnostics can not figure which one so both codes are generated.
