Operating Instructions - Snap-on Equipment
Operating Instructions - Snap-on Equipment Operating Instructions - Snap-on Equipment
General MaintenanceConnecting To The Vehicle1. If you are obtaining RPM from a high voltage spark plug wire, place theprobe around any plug wire and close the probe.✓ If RPM cannot be obtained, move the RPM probe to a differentplug wire OR reverse the direction of pickup probe on the plugwire.2. If you are obtaining RPM from the low voltage ignition coil primaryconnections, with proper configuration as described above, place theinductive pickup around the low voltage wire going to the ignition coil.✓ Other vehicle components, such as fuel injectors or battery feedwires for coil on plug systems may also produce a signalequivalent to the engine speed. The inductive probe should NOTbe placed around two wires at any time, a single battery feed +12Vis the correct wire.RFI, Radio Frequency Probe (Non-contact)Follow the setup instructions for the Inductive probe (Using The Inductive Probe,page 4-4) except for Ignition Connection select Non-Contact. All other steps listedfor the inductive probe apply.Connecting to the Vehicle1. If not done already connect the RFI (Non-Contact) RPM probe into theyellow RPM extension cable in place of the inductive probe.2. Attach the battery clamp of the RFI probe to a CLEAN solid engine groundpoint. You can use the battery NEGATIVE cable if it is clean or any othersolid engine metal connection point.3. Position the cable of the RFI probe ONLY, not the yellow cable, over theengine and spark plug wires. The cable can be simply laid out over theengine; it is not necessary to wind the cable around the wires. The cableshould be positioned as close to the ignition coil as possible.✓ Make sure the cable does not come in contact with any moving engineparts such as pulleys or belts. Also make sure the cable does not contactany part that will become excessively HOT such as an exhaust manifold.If the RPM signal is erratic or seems incorrect, reposition the cable, insure a goodground and try again. Because the principle of the pickup is to sense ignition noiseand convert it to an RPM signal, some ignition system designs may make it verydifficult. If problems continue to be experienced, use a different engine speedmeasurement device.OBD RPM PickupFollow the setup instructions for the Inductive probe (Using The Inductive Probe,page 4-4) except for Ignition Connection select OBD. All other steps listed for theinductive probe apply.The OBD RPM device is designed to be used on 1996 and newer vehicles ONLY.These vehicles are equipped with the OBD II Emissions system. See Appendix Aof this manual for additional information and vehicle connector information ifunfamiliar with OBD Systems.4-6
General MaintenanceWhen using the OBD RPM pickup do not connect the other tachometer pickups.Engine speed is obtained from the OBD Diagnostic connector located inside thepassenger compartment of the vehicle.Connecting to the Vehicle1. Inside the vehicle, locate the OBD Diagnostic Connector; referenceAppendix A for connector locations.2. Using the long communications cable, which is connected to the RS232OUT connector on the FGA and the black OBD diagnostic interface device,plug the interface into the vehicle’s OBD connector. Make sure theconnection is seated properly.3. With the engine running, RPM from the vehicle computer displays.✓ Some vehicles are known NOT to communicate with OBD IItesting devices. If communications cannot be established, turn offthe vehicle for at least 12 seconds, disconnect and then reconnectthe OBD II device and try again. If problems persist, use a differentRPM pickup device.✓ Because of the wide variety and complex design of today's ignitionsystems it may not be possible to obtain stable RPM from somesystems even with the variety of pickup choices provided.Using the Optional Oil Temperature KitIn order to use the optional Oil Temperature measurement kit, you must have theoptional RPM kit. A common connection on the FGA is used for both. Theinstallation instructions provided with the Oil Temperature kit provide informationabout connection to the FGA.A quick review of connections follows: Connect one leg of the yellow Y cable to thecommunication panel of the FGA. Connect the Oil Temperature probe into thecommon connector of the Y and RPM into the other leg of the Y.Connecting to the Engine1. Remove the dip stick from the vehicle. Measure the engine oil level andinsure the crankcase is full.2. Place the brass end of the oil temperature probe even with the end of thedip stick and slide the black rubber stopper up on the probe until it is evenwith the dip stick seal on the dip stick. This positions the oil temperatureprobe properly in the crankcase.3. Slide the Oil Temperature probe into the dipstick and place the rubberstopper into the dipstick tube.✓ Improper probe length can result in damage to the probe andcontact with the crankshaft within the engine. ALWAYSPROPERLY MEASURE THE LENGTH.✓ On many of today's vehicles the dipstick tube must be sealed toensure proper air fuel mixture. Make sure the stopper fits snuglyinto the dipstick tube.✓ As an alternative to oil temperature, the temperature of the upperradiator hose can be used as an indicator of a warm engine. Tomeasure temperature at this point simply secure the probe to theradiator hose with duct tape. The temperature here may be higherthan the oil temperature.4-7
- Page 109 and 110: 3CPC Meters/Strip ChartThis chapter
- Page 111 and 112: PC Meters/GraphGas Bench MenuThe Ga
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- Page 115 and 116: PC Meters/GraphStrip Chart Display
- Page 117 and 118: PC Meters/GraphWhen you select the
- Page 119 and 120: PC Meters/GraphTachometerUse the Ta
- Page 121 and 122: PC Automatic Tests3DTSI TestThis se
- Page 123 and 124: PC Automatic TestsTachometer Config
- Page 125 and 126: PC Automatic TestsIdle RPM TestFGA
- Page 127 and 128: PC Automatic TestsTSI Results16. Th
- Page 129 and 130: 3EPC Customer/VehicleFGA is designe
- Page 131 and 132: PC Customer/VehicleInformation bar
- Page 133 and 134: PC Customer/VehicleWhen the desired
- Page 135 and 136: 3FPC ResultsThe Test Results window
- Page 137 and 138: 3GPC MaintenanceGas CalibrationThis
- Page 139 and 140: PC Maintenance5. Attach the calibra
- Page 141 and 142: PC MaintenanceNew NO x SensorNew NO
- Page 143 and 144: PC MaintenanceShop InformationThe S
- Page 145 and 146: PC MaintenanceThe Setup window cont
- Page 147 and 148: PC MaintenanceTSI Test SetupThe TSI
- Page 149 and 150: PC MaintenanceZero Purge Time(s)—
- Page 151 and 152: PC MaintenanceDiagnosticsService ut
- Page 153 and 154: PC Other Functions3HThis chapter co
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- Page 171 and 172: Interpretation2. Repair the vehicle
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- Page 175 and 176: AAppendix A:OBD II ConnectionsThe l
- Page 177 and 178: LIMITED WARRANTYTERMS AND CONDITION
General MaintenanceWhen using the OBD RPM pickup do not c<strong>on</strong>nect the other tachometer pickups.Engine speed is obtained from the OBD Diagnostic c<strong>on</strong>nector located inside thepassenger compartment of the vehicle.C<strong>on</strong>necting to the Vehicle1. Inside the vehicle, locate the OBD Diagnostic C<strong>on</strong>nector; referenceAppendix A for c<strong>on</strong>nector locati<strong>on</strong>s.2. Using the l<strong>on</strong>g communicati<strong>on</strong>s cable, which is c<strong>on</strong>nected to the RS232OUT c<strong>on</strong>nector <strong>on</strong> the FGA and the black OBD diagnostic interface device,plug the interface into the vehicle’s OBD c<strong>on</strong>nector. Make sure thec<strong>on</strong>necti<strong>on</strong> is seated properly.3. With the engine running, RPM from the vehicle computer displays.✓ Some vehicles are known NOT to communicate with OBD IItesting devices. If communicati<strong>on</strong>s cannot be established, turn offthe vehicle for at least 12 sec<strong>on</strong>ds, disc<strong>on</strong>nect and then rec<strong>on</strong>nectthe OBD II device and try again. If problems persist, use a differentRPM pickup device.✓ Because of the wide variety and complex design of today's igniti<strong>on</strong>systems it may not be possible to obtain stable RPM from somesystems even with the variety of pickup choices provided.Using the Opti<strong>on</strong>al Oil Temperature KitIn order to use the opti<strong>on</strong>al Oil Temperature measurement kit, you must have theopti<strong>on</strong>al RPM kit. A comm<strong>on</strong> c<strong>on</strong>necti<strong>on</strong> <strong>on</strong> the FGA is used for both. Theinstallati<strong>on</strong> instructi<strong>on</strong>s provided with the Oil Temperature kit provide informati<strong>on</strong>about c<strong>on</strong>necti<strong>on</strong> to the FGA.A quick review of c<strong>on</strong>necti<strong>on</strong>s follows: C<strong>on</strong>nect <strong>on</strong>e leg of the yellow Y cable to thecommunicati<strong>on</strong> panel of the FGA. C<strong>on</strong>nect the Oil Temperature probe into thecomm<strong>on</strong> c<strong>on</strong>nector of the Y and RPM into the other leg of the Y.C<strong>on</strong>necting to the Engine1. Remove the dip stick from the vehicle. Measure the engine oil level andinsure the crankcase is full.2. Place the brass end of the oil temperature probe even with the end of thedip stick and slide the black rubber stopper up <strong>on</strong> the probe until it is evenwith the dip stick seal <strong>on</strong> the dip stick. This positi<strong>on</strong>s the oil temperatureprobe properly in the crankcase.3. Slide the Oil Temperature probe into the dipstick and place the rubberstopper into the dipstick tube.✓ Improper probe length can result in damage to the probe andc<strong>on</strong>tact with the crankshaft within the engine. ALWAYSPROPERLY MEASURE THE LENGTH.✓ On many of today's vehicles the dipstick tube must be sealed toensure proper air fuel mixture. Make sure the stopper fits snuglyinto the dipstick tube.✓ As an alternative to oil temperature, the temperature of the upperradiator hose can be used as an indicator of a warm engine. Tomeasure temperature at this point simply secure the probe to theradiator hose with duct tape. The temperature here may be higherthan the oil temperature.4-7
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