Mazda Repair Questions? Ask Mechanics for Answers ASAP
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If it starts right back up and seems like it stalls or wants to stall when releasing the accelerator like this here what can cause this is carbon build up in the throttle body bore or bore plate.Below is a diagram of the throttle body itself.You may want to take a shop rag with some carburetor cleaner or brake cleaner sprayed on it and wipe out the throttle bore and bore plate with the engine off.This can block air flow into the engine when releasing the throttle and cause a stall out when shifting into neutral as the engine idles down when this is done.
If the check engine light has come on with this issue here the first thing that needs done is to have the fault codes read out/checked to see what codes are set.Once this is done any codes set need diagnosed and repaired to correct this fault here.Carbon build up in the throttle body bore can be common.
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