Combination of these three codes must point to a specific failure? 17544, 17546, 17521
04-07-2006, 12:03 PM
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Combination of these three codes must point to a specific failure? 17544, 17546, 17521
2000 S4 Tip 76k mi chipped + neuspeed exhaust otherwise all original parts.
CEL is on with the following three codes:
17544-Long Term Fuel Trim Add.Fuel,Bank1 System too Lean
17546-Long Term Fuel Trim Add.Fuel,Bank2 System too Lean
17521-Bank1-Sensor1 Internal Resistance too High
What course of action would you suggest considering the model, mileage, and the fact that all the parts are original factory installed. Do the codes indicate a failed MAF, which I've read is common. Or is it simply a failing O2 sensor (btw - which one would it be?)
Thanks!
CEL is on with the following three codes:
17544-Long Term Fuel Trim Add.Fuel,Bank1 System too Lean
17546-Long Term Fuel Trim Add.Fuel,Bank2 System too Lean
17521-Bank1-Sensor1 Internal Resistance too High
What course of action would you suggest considering the model, mileage, and the fact that all the parts are original factory installed. Do the codes indicate a failed MAF, which I've read is common. Or is it simply a failing O2 sensor (btw - which one would it be?)
Thanks!
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