Shaking when idling
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Junior Member
Joined: Jun 2025
Posts: 1
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Shaking when idling
Hi all,
I have a Cx-5 sport with 60,000 miles that’s been giving me idling issues and the RPM gauge keeps revving up.
I drove it from Los Angeles to Indio with the AC, going over it ran without problem. On the drive back we stopped to see the dinosaurs in Cabazon and the car did not want to start when we returned. We cleaned out the battery and kept the AC off and made it home safely.
Later, The check engine light came on and the computer read it as the mass air flow sensor, we changed that and had it reprogrammed. I tried driving it short distances and it started fine then on the drive back it would start shaking at red lights and complete stops.
The car is back at the shop and the dealership Is charging me a ton of money to diagnose the issue because the VIN is not part of the current recalls.
Is anyone else having similar issues?
I have a Cx-5 sport with 60,000 miles that’s been giving me idling issues and the RPM gauge keeps revving up.
I drove it from Los Angeles to Indio with the AC, going over it ran without problem. On the drive back we stopped to see the dinosaurs in Cabazon and the car did not want to start when we returned. We cleaned out the battery and kept the AC off and made it home safely.
Later, The check engine light came on and the computer read it as the mass air flow sensor, we changed that and had it reprogrammed. I tried driving it short distances and it started fine then on the drive back it would start shaking at red lights and complete stops.
The car is back at the shop and the dealership Is charging me a ton of money to diagnose the issue because the VIN is not part of the current recalls.
Is anyone else having similar issues?
Senior Member
Joined: Oct 2018
Posts: 10,665
Likes: 233
From: Northern California
Welcome to the forum.
Whomever scanned your ECU did not do a complete search. You have more then a simple one DTC indicating a possible faulty MAF. You did not state it was checked before replacing it. That means it was likely not the cause but a casualty from the original cause yet unfounded.
The dealership should charge you a minimum one hour diagnostic fee. Hopefully the Tech finds the cause and then can tell you what it is and what it will take to correct it. It is more than likely something a DIY can service. But reading between the lines and guessing your Mazda has not been serviced very well especially in preventative maintenance.
Whomever scanned your ECU did not do a complete search. You have more then a simple one DTC indicating a possible faulty MAF. You did not state it was checked before replacing it. That means it was likely not the cause but a casualty from the original cause yet unfounded.
The dealership should charge you a minimum one hour diagnostic fee. Hopefully the Tech finds the cause and then can tell you what it is and what it will take to correct it. It is more than likely something a DIY can service. But reading between the lines and guessing your Mazda has not been serviced very well especially in preventative maintenance.
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