93 Mazda MX-3 Idle Issue
 

Hi,

I have a 93 Mazda MX-3 with the 1.6 liter manaul trans. I just put a new head gasket and oil pump on it. Runs great at cold start but once it gets to operating temp the idle flucuates between 300 and 1100 rpm. It did this before I replaced the gasket and oil pump. Any help would be greatly appreciated. It only has 103,000 miles. Thanks.

I have taken my MX3 to a Mazda service-station. They read out the error codes: there were two errors originating from the coolant temperature sensors. These sensors probably had made incorrect measurements because of my radiator leakage (the water had not reached the sensors.
The error codes were now cleared, the radiator refilled, and the idle rpm was adjusted somewhat . Now the problem is completely gone. It took about half an hour and costed 5000HUF .It was definitely worth the trouble!

!994 MX3 Popping sound and 30% compression loss
 

Howdy all :(,

I own a 1994 Mazda MX3 with 136K miles on it. I recently unknowingly over-revved to approximately 6k RPMs in 4th gear at which point it began to decelerate until I began to shift into 5th gear when it suddenly stalled. I replaced the timing belt and water pump two months prior. The mechanic at the service station where I broke down told me I needed a new distributor and boot hose that attaches to the mass air flow sensor. Now it sounds like a popcorn kettle when I shift from gear to gear as I accelerate and the power has significantly diminished. Traveling on the slightest incline from a stop position causes the car to want to stall unless I give it more gas. I also noticed a slight tapping from the engine (valves?) when I started the car before all of this began. Any and all suggestions will be greatly appreciated.

Cheers,
Joseph

I recently bought a 93 mx3 1.6 ,high miles but still a solid ride one issue left to go an it seams to be a some what common problem, its that idle issue when its at optimal temp.
the idle will drop when brake peddle is depressed,then push the clutch put in gear an it drops to the point of near stall pull it out of gear it'll come up to 900 RPM let up on brake an it returns to factory settings , bad ground, weak ALTR. or bad sending units ?
The brake peddle ,I don't believe its a vac. thing, the issues don't take place until the car is warmed up so...............HELP