hornsfan10609
Certified Mazda Tech
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- 2003.5 Mazdaspeed Protege x2
Can't hurt to clean them both. Typically they will throw sensor-specific codes when they fail, not just a random misfire code. What code is it throwing now? Still a P0300? If you know anyone with a 2.0L protege or a 99-05 Miata you can swap the MAF out to see if that is the problem. You can always find both the MAF and EGR at a junkyard, I paid about $30 for a MAF and I still have it on my car.