1993 Mazda 323 No Start Condition

1993 MAZDA 323
18,000 MILES • 4 CYL • FWD • AUTOMATIC
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JACKDO
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Hello, working on a 1993 Maxda 323. Cannot find a code reader for this OBD1? system. I have a no start condition. I have spark, I have fuel delivery to the rail, I have power to the injectors. Suspect a cam sensor or ignition mod but cannot find a component locator chart. Any ideas? Thanks for any response.
Apr 8, 2009 at 7:53 PM
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RASMATAZ
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Remove the dstributor cap and crank engine over is the ignition rotor turning?
Apr 9, 2009 at 4:21 AM
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JACKDO
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Thanks for the response rasmataz,

I have checked the timing belt and it is ok. I have compression and fuel and spark. I will bring no1 to top dead center and check the rotor for alignment to #1 spark plug lead. This is really a perplexing problem....spark, fuel, compression...darn thing should run but just cranks over with no indication of wanting to fire up......
Apr 10, 2009 at 7:36 PM
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RASMATAZ
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Is this a carb or an EFI system-if its an EFI could be the injector/s are not pulsing. Try getting the valve and ignition timing straight. Have you attempt to check fuel pressure? If not do so.
Apr 10, 2009 at 8:03 PM
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JACKDO
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I checked the timing, No #1 cylinder TDC - rotor aligned to #1 ignition lead.....

Parts swapping time, hate to try and fix cars this way but with spark,fuel and compression I suspected the ignition module located in the base of the disributor was nfg. This mod appears to funtion like a cam sensor, this early version of the 323 does not appear to have a crank angle sensor or knock sensor. The ECU seems to control the spark timing via the ignition module. Anyhow I replaced the distributor as the module is stated as unserviceable, and the engine fired up instantly. So the Mazda 323 can have spark, fuel and compression and still suffer a no start condition. The older versions ( Like this one - 1993 ) of the real time emission control vehicles, even with minimal sensors, are a pain to trouble shoot without the factory manual and a scan tool. Although in this case, as the failed distributor did not set a fault code.... no ( service engine soon light ) reading the codes would not have helped.

I Still have not found any manufacturer building a OBD1 tool for this model. Perhaps the factory manual explains how to decipher the codes via a blinking dash board light. LOL

Thanks again for your assistance.

PS The above motor is the 4 cylinder 97.5 CID / SOHV with multi port EFI. The engine family is
RTK1.6V7GAEA
Apr 12, 2009 at 4:20 AM
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