Rev drop while driving
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Junior Member
Joined: Feb 2025
Posts: 3
Likes: 0
From: Romania
Rev drop while driving
Hello, I have a problem with my 2007 mazda 6 RF7, the car's pedal drops at around 1800-2000 rpm when is hot and 4000rpm when is cold and only recovers when the needle reaches 1000 rpm, dpf egr off, the vacuum pump and maf has been changed and the error codes are: P0101, P0104, P0106, C1119, U0100. Please help me, I'm getting desperate.
Senior Member
Joined: Oct 2018
Posts: 10,613
Likes: 231
From: Northern California
First STOP changi8ng random unverified part not confirmed to have failed. Doing so can and often times creates more issues before the original unresolved one was found.
Best way for a DIY.
You need to scan and check for the permanent DTCs not pending as those IMHO you posted are? Then you need to check the I/M monitors/ Reset everything. Part the car overnight then start and drive. As soon as the check engine light appears pull over and retrieve the current DTC information. That will at least show where to start to look for the issues instead of all the random codes created for running the engine to ling after the original DTC/check engine light was activated.
Best way for a DIY.
You need to scan and check for the permanent DTCs not pending as those IMHO you posted are? Then you need to check the I/M monitors/ Reset everything. Part the car overnight then start and drive. As soon as the check engine light appears pull over and retrieve the current DTC information. That will at least show where to start to look for the issues instead of all the random codes created for running the engine to ling after the original DTC/check engine light was activated.
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