Using ATAP to see if front O2 sensors are bad?
01-19-2003, 10:00 PM
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Using ATAP to see if front O2 sensors are bad? What exaclty do I need to monitor while on an atap run to check and see if my front O2 sensors are bad?
01-20-2003, 10:37 AM
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Re: Using ATAP to see if front O2 sensors are bad? You can look at the MV output. If you suspect both are bad, you should see other evidence such as normal O2 readings at WOT yet the car is running very rich (black smoke) or very lean (lots of KR or lean spark plugs) or LTRIMs that are at the extremes (+25 or -25). If one side is bad you can look at the side to side balance.
01-20-2003, 01:09 PM
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Re: Using ATAP to see if front O2 sensors are bad? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ragtop 99:
<strong> You can look at the MV output. If you suspect both are bad, you should see other evidence such as normal O2 readings at WOT yet the car is running very rich (black smoke) or very lean (lots of KR or lean spark plugs) or LTRIMs that are at the extremes (+25 or -25). If one side is bad you can look at the side to side balance. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks!
<strong> You can look at the MV output. If you suspect both are bad, you should see other evidence such as normal O2 readings at WOT yet the car is running very rich (black smoke) or very lean (lots of KR or lean spark plugs) or LTRIMs that are at the extremes (+25 or -25). If one side is bad you can look at the side to side balance. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks!