the spark on these are usally a orangy looking.....
has 2 crank sensors a 24x and a 7x...the 7x is in the side of the engine block..note the picture i sent earlier
|2001 Chevrolet Malibu V6-3.1L VIN J|
|Computers and Control Systems Testing and Inspection, Component Tests and General Diagnostics: Electronic Ignition (EI) System Diagnosis|
The Ignition Control (IC)
module has independent power and ground circuits. The circuits between the IC module and the Powertrain Control Module (PCM)
consist of the following circuits:
^ The IC timing signal
^ The IC timing control
^ The low-resolution engine speed signal
^ A low reference signal
The Ignition Control (IC) module sends 3x signals to the Powertrain Control Module (PCM). The IC module controls the timing advance during engine cranking. The timing advance changes to PCM control after the following actions:
^ The PCM receives the second 3x signal.
^ The PCM applies 5 volts
to the IC timing signal circuit.
^ The timing advance switches to PCM control.TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
2. It is necessary to disconnect the 24X crank sensor to ensure that the 7X signal is being read in the 3X reference parameter on the scan tool.
3. The J 26792 spark tester presents a more difficult load on the secondary ignition than a normal spark plug
. If a miss, stumble, or hesitation is being caused by a spark plug
not firing, the spark tester should also not tire.
4. Use a 5 percent
saltwater solution in a spray bottle to induce voltage arching to ground through faulty insulation of spark plug wires.
6. If the no spark condition follows the suspected coil, that coil is faulty. Otherwise, the ignition module is the cause of no spark. This test could also be performed by substituting a known good coil for the one causing the no spark condition.