Injector Buzz test basics
I've got a couple of basic questions about injector buzz tests. I know that the terminator scan gauge and the AE
will both do them. Now onto the questions
1. Are the same things required for the 'buzz' that are required for the injector to fire when the truck is running / starting? I.E. Voltage, fuel pressure, oil pressure so on an so forth, or just a good solid connection?
2. If you are not getting a buzz with a particular injector or all the injectors but the tach is still moving is that indicative of a failure of the injector(s) or the signal to that injector(s)? Or does it pass if the tach still moves?
3. How many 'buzzes' should there be? I've had one loud one followed by 8 softer ones. I am assuming that it is all 8 buzzing then each individual one.
4. At the end of the 9 buzzes should there be anything else? Reason being is my scan gauge continues to say 'testing' but nothing else happens, even after 5 minutes. Is this a failure of my truck or the gauge?
Thanks in advance, hope this clears some things up about this process.
00 F350 CC LB 4x4 auto. Nitto Terra 285 75 r16 E, Dynatrac free spin hubs, ccv, rancho stabilizer, centramatics, upgraded GPR, DB starter, 2.0 ga pos cable, matching 5th rim, 6637, 4" SS magnaflow, CPR, Scan Gauge, Mag Hytech.
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