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1988 300-sel
1.) "What are indicators of O2 problems?"... Bad gas mileage. (running rich)
2.) "Do they need to be changed on regular basis - milege?"... Not necessarily but yes. (although if it aint broke don't fix it)
3.) "If so, are there other things that need changing at same time? What?"... No.
4.) "Are there test that can be done to detect if O2 is bad or going bad?
What are the steps to changing one?"... Do you have a 'Scope' or a 'Multi-meter' that reads 'duty cycle' or just a 'Multi-meter'?
Last edited by A264172; 09-14-2005 at 07:20 PM.
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