| ID | Status | Date | Year | Make | Model | Transmission Type | A/C Controls | Public/Private |
|---|---|---|---|---|---|---|---|---|
| #13979 | Closed | 2002 | GMC | Yukon XL, 1500, SLT, 2 wheel drive with the flex fuel sensor | public |
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On your video regarding Flex Fuel Sensor wire testing, the test for the 5 volt made sense but when you made up a fused pig tail to test for the 12 volt it did not make sense. why not just use the multimeter leads for the 12 volt test? |
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I am assuming you are referring to the article linked to below. Using just a meter to check for battery voltage can sometimes fool you because the voltmeter puts no load on the system. Could be 12 volts when disconnected and tested with a voltmeter but may only be supplying 6-8 volts with a load applied to the circuit. In one part of the testing I used the jumper wire simply as a means to connect to the terminal without damaging as the test light clamp is too large. In the later test I substituted fuse sizes to check and make sure the circuit would carry the full rated load on both the ground and power side at the same time. Hope this helps. |