p0172 and p0175
04-09-2007, 10:43 AM
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p0172 and p0175 I recently put a set of 1.85 rockers on my 2000 LS1 and now im getting the codes p0172 and p0175 (rich in banks 1 and 2) The SES light comes on and goes back off after about an hour of driving and stays off for a couple of days. Don't have rear o2's. What could be the problem? The o2's are about a year old and i havent had any problems like this before.
