1992 Mazda B2200 - Check engine light: Suggestions?

Dave

New member
The check engine light in my 92 B2200 has been on for more than 60,000 km and I've finally decided to diagnose her. I've noticed, lately, that it's using a lot more fuel than it used to.

What are some possibilities?
- Faulty O2 Sensor
- Air Flow Sensor
- Throttle Position Sensor
- ECU...
- Timing Belt

What else could it be? (Cheapest Suggestions First)
 
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