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Can anyone tell me what the following codes are?
13, 32, 44, 45

My light comes on after about 10 minutes of driving. I did the paperclip test and those codes were stored. This started after I replaced the CAT (about 1 month). Before I was always getting the code for EGR, only because I had it disconnected. I have since put everything back to stock.
Truck just turned 150k this morning. All stock. Within the past 2 years I have replaced all of the sensors. O2, TPS, EGR, MAP, etc...

Your knowledge is appreciated.
Matt
 

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Code 13 - O2 or circuit,32 - EGR circuit(fuel injected models),44 - O2 sensor or circuit(lean exhaust detected,45 - O2 sensor or circuit(rich exhaust detected).Have you disconnected the battery to clear the stored codes?Checked all your connectors to make sure they are secure?Haynes service manaul has the codes printed in it.Plus procedure for checking sensors.
 
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