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If you check the underside of your air intake hose, there should be a plastic box attached to it. If there is just a hole there you will need a new box because the MAF sensor is getting the wrong readings.The only problem is if it backfires through the intake again it'll blow that box apart again. I have blown up 2 already and at $70 Cdn each it's not cheap. I've got my intake wrapped with Gorrilla Tape as a temporary fix until I can find the reason for the backfire. The car runs ok but it's not gonna work long term. I've had it on for a week and no problems so far.

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Q: 1991 Mazda 626 DX won't start btu when it try's it backfires right through the intake?
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