08-04-2018, 12:34 PM
In the case of the crank sensor, it had gone out to 200 kohm, but on destructive investigation the (very fine wire) coil was as shiny as the day it was made. Not a very satisfactory situation-i would have been less perplexed if it had turned green or black.
Having checked the rear ABS sensors, one was 110ohm and the other showed as o/c on one of my better DMM's, and drifted from test to test on an AVO 8 to anywhere between 1.1k to 8k to o/c. This particular sensor will be changed!
Note that AVO 8 can't be used on a lambda/O2 sensor without collapsing the signal and possibly destroying the sensor. high impedance Farnell DMM was used for that without issues. ('Scope would have been better)
Having checked the rear ABS sensors, one was 110ohm and the other showed as o/c on one of my better DMM's, and drifted from test to test on an AVO 8 to anywhere between 1.1k to 8k to o/c. This particular sensor will be changed!
Note that AVO 8 can't be used on a lambda/O2 sensor without collapsing the signal and possibly destroying the sensor. high impedance Farnell DMM was used for that without issues. ('Scope would have been better)
