Is an exciting new diagnostic probe that is used with a lab scope to analyze automotive noises from electric motors to fuel injectors, wheel bearings and even engine knocks!

Equipped with headphones to locate the “noise” you are trying to analyze quickly and easily, converting vibrations resulting in the “noise” that vibrates your eardrums to an electronic signal that is displayed and can be analyzed on your DSO.

$257.00

To test Injectors for a sluggish injector pintle, restricted injector or to determine injector pulse-width:

Remember that you can use the control knob to adjust the voltage display. Pulse- width is measured between the peak vibrations between the full opening and full closing of the injector. A sluggish or sticking pintle as well as clogged injectors can be uncovered easily with this method without the any intrusive connection to the injector!

To detect an inoperative injector:

1. Select a 20ms per/div time-base on your DSO for idle condition testing.
   
   
2. Connect one channel of your DSO to #1 injector voltage. Connect another channel of your DSO to the banana jacks of the Detective’s Ear and touch the V-Probe to the fuel rail.

Remember that you can use the control knob to adjust the voltage display.
An inoperative injector will be obvious as a missing pulse corresponding to the firing order of the engine.

To determine if an engine knock is in the upper or lower end of an engine:

1. Using the headphones provided with The Detective’s Ear touch the metal wand attached of the V-Probe to an area of the engine in order to locate a good source for the “noise” you are trying to analyze.
   
   
2. Select a 20ms per/div time-base on your DSO for idle condition testing.
   
   
3. Connect one channel of your DSO DSO to trigger from #1 coil for a C.O.P ignition or #1 cylinders ignition signal with a sync probe.
   
   
4. Connect another channel of you DSO to the banana jacks of the Detective’s Ear amplifier and adjust the control knob up or down to adjust the voltage display.

An upper end knock will occur only once per two revolutions of the crankshaft (one camshaft revolution)

A lower end knock will occur twice per two revolutions of the crankshaft.

Rotational Analysis

The Detectives Ear and V-Probe can also be used to analyze vibrations and noises from components such as wheel bearings, water pumps, alternators, engine mounts, and electric motors with just a touch of the probe and a lab scope.

  $257.00