Question about 1993 Mazda MX-3
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Posted on Jan 02, 2017
hello there, there is a way to check if the alternator works, just start the engine and run it at idle for a minute or so just to get the engine warmed up. while the engine is running, try to remove the positive terminal cable from the battery (note: no lights, radio, or any accessories operating). the alternator should be sufficiently providing power to the engine. if it dies down the charging might be weak. another way is purchase a digital multimeter and setting it to dc voltage testing. put the tester prongs on the correct terminal( positive to red positive and negative to black negative) test the voltage prior to starting. usually it shall read 12. 3 or a tad higher. remove the tester prongs from the battery terminal and start the engine. then place it back on. the reading shall read 14V plus without any load. sometimes it might read 15V w/c is usually over for certain cars. then turn on all accessories: headlights, aircondition/heater and etc. if the reading on the tester indicates 12.8V and above 13V your charging system is ok.(all this test is on engine idle)
For the battery, my experience is that 2 years of battery duty is quite good already. unfortunately, during these span of duty the battery might give a 12V reading but its strength is not enough to sustain the load. the voltage of the battery is the physical attribute so to speak and ampere is the power or strength of the battery.
for your accessories that died, I think something tripped when you jump started it. but the accessories are easily traceble. I think what's important is keeping the engine in tip top condition and won't let you down during hard times.
hope some of this helps you.
Posted on May 04, 2009
you may need to run a wire from a keyed ignition source that has power while cranking and running to the fuel pump relay and bypass the pcm to test wether it will run, if it runs put a more permanent wire in place.Not too sure what tests youve done but it seems that fuel is what your focusing on so a quick test is too spray engine start up the intake tube to see if the engine trys to run if it does it eliminates a lot of other potential reasons for a no start condition.Also try squeezing the fuel return line to see if the added pressure will try to make engine run.Could be time to replace fuel pump etc anyway let me know how it goes good luck with it
Posted on Dec 12, 2008
SOURCE: Mazda mx3 wont start
VSS or vehicle speed sensor aka cam sensor or crank position sensor. Test the battery and alternator. You should also check for blown fuses, bad wires and grounds on a car as old as yours. If you find it's getting spark and fuel after further testing, check the timing belt. It could have slipped or broke even if it was changed recently so either pull off the cover or at least do a compression test.
Posted on Apr 16, 2009
Since you have double checkedthe timing and checked the battery make sure you are getting a spark at the plugs and that you are getting fuel. Make sure all sensors are plugged in and are working. Check near the crankshaft (front) for a small sensor and be sure it is plugged in. This is because some vehicles have a crankshaft position sensor to regulate when the spark is delivered to the plugs.
Posted on Aug 11, 2009
If yours is the v6 2.5 the tps is adjustable and you can turn it up and down. On my mazda it acted like it was in the fuel system and i ended up replacing the distributor.
Posted on Feb 06, 2010
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