Question about 1990 Toyota Xtracab
You need to confirm voltage to your ignition system. Do you have power to your Ignition coil or igniter? How did you test the Pick up coil? did you check it for continuity? Or did you check it for a voltage fluctuation. If you use a multi meter on the mv scale and pin probe the two terminals on the pick up coil while cranking you should see a voltage fluctuation from positive to negative and back and forth. That will confirm a good pick up coil if it varys in voltage while cranking. You may also want to confirm the engine is turning the cam shaft ( has the timing chain broken?) while you are testing the pick up coil.
I hope this helps.
Posted on Nov 17, 2009
1. Verify the coil and igniter do not lose power during cranking as if the ignition switch were bad.
2. Verify the igniter is getting a good ground through its mounting. If all test good a faulty replacement part may have been installed. The ground wire that runs from the negative battery terminal to the fender gets corroded or broken see if thats the problem. 1. Verify good battery voltage to both sides of the ignition coil.
2. Scope the coil negative to see if it is getting pulled all the way to ground by the igniter.
3. Can also check for about 5 degrees dwell on coil negative while cranking. The Engine Control Module (ECM) . does not create spark on this vehicle. The ECM can only change ignition timing. It cannot cause a no spark condition. hope i helped!!!!!!!!!!!!!
Posted on Nov 15, 2009
Signal comes from the computer on these for the ignition pulse. if no signal,check the wire to the PCM. PCM is prabably bad. Check the fuse box for any PCM related fuse
Posted on Nov 16, 2009
I am sure you have done this,but have you checked to see if the rotor is turning in the distributor,when turning the engine over?If it is not,of course,then the timing chain has broken.All these parts were new ,I am guessing,if they where used,they might be defective also,but if they where new good,that is out of the way.Did the pick up coil check out good?If so,and everything else is good,then the computer would have to be bad,unless there is a circuit broken,maybe a start fuse in the fuse box.Most of the time,the distributor replacement fixes these models,almost every time,Make sure the timing chain has not broke.If the parts where used,then this tells us nothing.Try another used distributor,with everything in it,or buy a new one,if the parts you installed where used.Let me know some feed back on this,and if this was helpful.
Posted on Nov 14, 2009
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Posted on Jan 02, 2017
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