Both MAF and O2 sensor gone
Thread Starter
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Senior User
Joined: Aug 2003
Posts: 128
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Both MAF and O2 sensor gone
both my MAF and O2 sensor dont work. Just wondering which one should I replace first. I dont have a lot of money and need to know which is more important. Also would just getting one make it any better or do you need both. Does anybody who lives in Southern cali know a cheap pick your part salvage yard I could pick one up at or know anyone sellig one. Thanks for all your help
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
When the engine is in closed-loop operation, the O2 sensor is used to help determine how much fuel is needed. You can think of it as being of greater consequence to the fuel/air mix than the MAF sensor. I'd replace it first.
