Check Engine Light -- the real reason

wxman

Member
(Sorry for starting a new thread on this, didn't mean to)

Folks, the check engine light has been coming on in many new cx-7's, mine included. First check the gas cap, but if tightening doesn't work, its probably the leak detection pump sensor. It's a known problem that's been reported to Mazda. My service tech said he had two other fixes yesterday, mine was the third. Although the fix is straightforward (putting in a new sensor) it takes 1 1/2 hours. And, they are forced to do a 1/2 hour inspection to make sure the leak isn't real. I can live with this since the car is so great, but I'll be really pissed if it ends up being a design issue -- that is, not a bad sensor but a good sensor being triggered by something inherent.
 
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