It's almost always a vacuum leak.
Why not phone a Mazda dealer and ask? IF you phoned me with the same question about a Gm car I would give an honest reply.
$300
diagram of fuse box of 2003 mazda b3000
The solenoids on are located on top of the motor on a Mazda 3000 Truck. They open a number of different valves as needed depending on overall driving conditions.
in the gas tank
vacuum leak. my 95 Monte Carlo did it. once in a while it would race to 2500 rpm then settle down like normal. not easy to find , but a cheap fix.
I have a 1999 Mazda b-3000 4x4 truck and the speedometer stop working. Are there fuses related to the speedometer that I can replace. If so where are the fuses located in the vehicle.
To replace dash lights on a Mazda B 3000 first disconnect the battery and remove the dashboard. Unplug the cluster wiring and carefully remove the display. Replace the lights.
I was told the computer was bad. I would test the computer first. It may also be the ignition module. I had the same problem with my '94 Mazda truck. It would be running fine and then just shut off. Also had trouble starting up every now and again. Usually i could just tap on the ignition module several times and it would start right up.
igniter is possibility
What is the torque specifications for Madza T 3000 engine
The Booty 3000