Ignition power transistor TEST - Nissan Forum
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post #1 of 4 Old Jul 3rd, 2003, 09:48 AM
shrkb8
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Question Ignition power transistor TEST

Does anyone know tha correct way to test the Power Transistor on a 94 Altima. My 1994 Altima will not start. Iíve checked the plugs; wires and the coil all are good. The cap and rotor are new. But no spark from coil or the plugs. I check the fail codes from the ECM and I receive a (no ignition signal ).Iíve tested the fuel injectors and they test good. Could the problem be the Power Transistor or ignition control module? Please let me know how to test the power transistor. Any other suggestion to troubleshoot the no spark problem.
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post #2 of 4 Old Jul 3rd, 2003, 03:34 PM
mgaff
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it sounds like the module in the distributor has gone out on you.
post #3 of 4 Old Jan 26th, 2009, 06:22 PM
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Join Date: Jul 2005
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Did you end up finding out what the problem was? it is 6 years later... cause i got the same problem. gotta be the Power transistor. Code 21 i'm getting. ignition signal loss. anyways...
post #4 of 4 Old Jul 1st, 2010, 03:57 AM
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You test an ignition coil by checking the resistance with an ohm meter. The resistance values should be something like, Primary winding .3 to 1 ohms, Secondary winding 8,000 to 11,500 ohms.

How would you really know if your ignition system components are having problems? Of course, you can't until you test them one by one. This is why it's important to regularly inspect your ignition components. But since the ignition system carries a lot of parts, it's going to take a lot of time to go through each one. So what's the best way for you to check your ignition system?

__________________________________________________ _________________
Actron ignition tester,can perform all types of electrical tests for your car.
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