Vehicle was having issue with carburetor, and would stall easily if gas pedal was pushed during warm up period. One day the car was warming up with choke engaged at about 3000 Rpms and it suddenly sta

SOURCE: 2004 Mazda RX8

Had the same problem today with flooded engine. I tried new plugs ($86.00) and used the clear flood mode but to no avail. Spoke to a tech at the mazda dealership and odd as this sounds it worked. On the right side of the engine on the intake about half way down the runner you will find 2 rubber plugs that cover vacumn ports. The front one is the easier of the 2 to access, hook up a piece of vacumn hose to that port, on the other end you need to hook up a funnel. You will have to adapt the hose up to get it to fit. Remove the fuel pump relay, it is the blue relay at the front of the fuse box and is closest to the radiator. Pour a half to 3/4 quart of transmission fluid in the funnel and have someone crank the engine(with a battery charger or jumper cables hooked to your battery so you won't run the battery down). Leave throttle closed, as the fluid gets sucked down you will here engine compression build and it will act like it is going to start, at that point while it is still being cranked stick the fuel pump relay back in. It should then start, it may spit and sputter but it will run. Remove the hose from the vacumn port and reinstall port plug. The car will smoke for quite awhile but the smoke will finally disipate. From start to finish it only took about 2 min. to get the car started. I asked him if that much fluid would hurt it and he said no. He also said that they see this problem a couple of times a week. He also said that they don't take the plugs out and clean prior to doing the procedure, it will work on the old plugs. This saved me a tow to the dealership and probably a couple hundred dollars.

SOURCE: 2004 mazda 3 stalls off idle

i found out from dealer there was a service bulitan for this problem. mazda reprogram the ecm for idle speed contorol . problem solved.

thank you

SOURCE: 1985 12A Mazda Rx-7 Starting Problems

The RX is a cold blooded beast, and needs to be choked even if it's 90 degrees out. My 85 Rx7 has had similar problems. on one occasion due to power dropping off I had to clean up and replace the positive cable to the starter and fusable link box. Right now it is having an odd problem if I pull out the choke before engaging the starter that the power dies, so I am waiting till the starter is running before pulling out the choke.
Sometimes if the car does not start right away the rotarys tend to foul the plugs. I keep a spare set available and swap them out. Another problem with a rotary that sits a long period is that apex seals will stick in place. Sometimes you can pour atf or brake fluid through the carb into the engine with plugs removed. Spin the engine to spread the fluid well and let it sit for a hour or so. Then spin the engine till most of the fluid is clear. Put plugs back in and start, sometimes ether will help fire it up quicker.

SOURCE: cranks but won't start fuel pump not coming on

put a small amount of fuel in the intake near the throttle plate then crank and see if it fires, if it does then it's a fuel problem, if it does not fire then pull a plug wire and put a philips head screw driver into the plug wire hold it 1/4 inch away from a good ground then have someone crank it over, you should see spark and it should be blue, if not then you have a ignition problem a bad coil or cam sensor but need to know what you found out on the two tests I told you first to give you a direction to go.

SOURCE: 94 mazda 2.0 engine 626 won't start.

Have you checked the fuel pressure? It sounds like a bad fuel pump.