I recently had some body work dont on my car. By the way, it is the S model
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with the 2.5 engine. When they did the body work, they had to remove a batter cable. When I took the car in to be repaired, I was getting 33 miles to the gallon. When I got it back, it had gone down to 28 MPG and now, out of nowhere, it's gone down to 23MPG. How can something like that happen just by taking off a battery cable. I'm sure it has something to do with the on board computer but the dealership is giving me a bunch of crap about it saying they can't do anything until the check engine light comes on. They didn't even bother to run a fuel trim check on it, which takes about 2 minutes. If they have to wait for the check engine light, their diagnostic skills must really suck or they are just plain lazy. What would cause my mileage to go down so drastically just by removing a battery cable?
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I don't believe it has anything to do with the battery cable. FORGET the dealership. Just because they sell the car doesn't mean they know how to fix it. I know that sounds sad, but true. You need an independant repair shop to look at serial data, fuel trims, upstream O2 sensor readings. In another word a tech with a BRAIN. Once you have been given the problem then call the 800 number for Mazada corporate. He who screams the loudest gets what they want.
Thanks for your response. I have a very good mechanic who used to work on my last car and he will do all the sensor reading for me without charge. Thanks again.
Thanks for your response. I have a very good mechanic who used to work on my last car and he will do all the sensor reading for me without charge. Thanks again.