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Diesel Piezoelectric Injector Quick-Fix
The newer Diesel Piezoelectric Injectors are triggered by a capacitor discharge. These are the facts on testing the Diesel Piezoelectric Injector.
1) They use about 120 volts or higher, with a current flow of about 7 Amps.
2) There are 3 to 7 mini pulses per cylinder power cycle.
3) The ECM shuts power off in the event of an injector fault.
4) The high trigger voltage makes the injector crystal expand.
5) Use about 170 to 220 K Ohms are a resistance guide for the Injector. Test scross the two injector pins.
6) Diesel Piezoelectric Injectors crystal tends to short to the outter casing.
7) Test the injector, using an Ohm meter from each pin to ground, thereby testing for a short to case. There should be infinite resistance from injector pin to ground, meaning the ijector case.
8) You must measure across each pin, to ground. Again, there should be no resistance value whatsoever.
Remember, if the injector is faulty, the ECM will disable or close this circuit. So it'll seem like the ECM is faulty. That concludes our Diesel Piezoelectric Injector quick fix.
Diesel Piezoelectric Injector Quick Fix
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