No spark produced by my distributor on my '93. V6 Mazda MX6
I,ve replaced the distributor and still no spark despite finding power going to the dizzy red with black stripe heavy cable also power at the white with black stripe. all earths ok. Checked wiring connections all ok. Checked all other connectors appear ok. However I have found a strange red insulated cable when stripping the insulation around it I found it wrapped with an un-insulated braided cable crimped too . (cable simmilar to a coaxial) two yellow with black stripped wires. I get the feeling it could be an immobiliser problem does anyone no how to isolate the immobiliser to test my thoughts. Many thanks people.
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Re: no spark produced by my distributor on my '93. V6...
Sorry i could no doubt sort it but i would need car in front of me,check the ignition module which could be in the dist or under the coil first before you start playing with the wires ,but yes sounds like the other wires could be an isolator switch or boy racer weekend mechanic alarm,dont know why people are guilled and fooled into fitting these useless things they always go wrong and have to be removed,cant beat a decent steering wheel antitheft lock.
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Mazda do not make distributors or electrical connectors . These parts are made for mazda to mazda specifications by electrical manufacturers / contractors . So being aware of that it is possible (long process) to get the name on the distributor to Lucas-Nippon denso -nitto -Mitsubishi-( Mitsubishi make for a lot of different car makers as oem equipment) etc and any other details stamped into the body of the distributor or ignition module and contact them on the web site at the technical section or parts section and try and track down from there. Another way that I sometimes use is to cruise the wreckers (mazda in this case ) and look for distributors from other engines that will have this part in use as there is always a parts over lap where new products are fitted to the run out models before the new model is on the market
When my MX6 was doing this it turned out to be an hydraulic leak from the clutch master cylinder, which runs on the same fluid reservoir as the brakes. Clutch master cylinder replaced and all good again!
the tps may affect the idle, but not really the excessive fuel. check that your coil has enough spark, remove plug watch spark. otherwise check haul senders in distributor or check injectors are not leaking.
Coil resistance is not a good way to determine if the coil is good or bad. It might still need replacing. Check to see if your getting a pulse signal to the coil. You can do this by hooking a milivolt test light to the trigger wire and ground. If it doesn't flash as you crank the motor, check out your pickup coil in the distributor. Some of them you can change. Some you have to replace the entire distributor. Sometimes oil will leak into the distributors on certain models which use an optical pickup. If this is the case, change the seal to fix the oil leak and GENTLY clean the optical sensor and photo wheel.