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I've already done some searching and reading, just looking for validation on my approach here.
2003 with 48.5k miles, car had a b2 code on it when I bought it in October at 45k miles as shown in PPI, cleared code at that time. Bought Peake a month ago, checked codes, totally clear (I danced a jig). Checked codes again two weeks ago, b2 code came up, NO SES light. Cleared it, checked tonight and now have both b2 and b3 codes, cleared codes. Still no SES light though. Car runs strong other than some slight hesitation after startup in the cold weather we've been having. Said hesitation disappears in less than a minute though.
Approach I'm thinking of:
- Replace one or both POST cat O2 sensors with Bosch units
- Check for codes
- If codes resurface, visit indy to check for rich running conditions that may be causing issue (DME)
- Possible replaced CPSs, cats (thinking magnaflow), etc as needed
Relevant maintenance done since 45k:
- Replaced spark plugs in December
- Replaced upper oil separator hoses and cleaned separators
- Oil and filter change 10w60 late December
I've been meaning to snap pics of my plugs for a "tea leaf reading", if folks think that would be helpful I can do that and post them here. Offhand the thing that stuck on the plugs to me was light corrosion on the metal of the most rearmost on the driver's side. I attributed this to a bad seal on the cover gasket....
Your thoughts and advice are appreciated, I understand this has been covered before, just want to make sure I'm following the right path.
2003 with 48.5k miles, car had a b2 code on it when I bought it in October at 45k miles as shown in PPI, cleared code at that time. Bought Peake a month ago, checked codes, totally clear (I danced a jig). Checked codes again two weeks ago, b2 code came up, NO SES light. Cleared it, checked tonight and now have both b2 and b3 codes, cleared codes. Still no SES light though. Car runs strong other than some slight hesitation after startup in the cold weather we've been having. Said hesitation disappears in less than a minute though.
Approach I'm thinking of:
- Replace one or both POST cat O2 sensors with Bosch units
- Check for codes
- If codes resurface, visit indy to check for rich running conditions that may be causing issue (DME)
- Possible replaced CPSs, cats (thinking magnaflow), etc as needed
Relevant maintenance done since 45k:
- Replaced spark plugs in December
- Replaced upper oil separator hoses and cleaned separators
- Oil and filter change 10w60 late December
I've been meaning to snap pics of my plugs for a "tea leaf reading", if folks think that would be helpful I can do that and post them here. Offhand the thing that stuck on the plugs to me was light corrosion on the metal of the most rearmost on the driver's side. I attributed this to a bad seal on the cover gasket....
Your thoughts and advice are appreciated, I understand this has been covered before, just want to make sure I'm following the right path.