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Engine Controls - Basic Testing Expand All (for easy ctrl-f) Collapse All Introduction Preliminary Inspection & Adjustments Compression Exhaust System BACKPRESSURE No-Start Diagnosis DISTRIBUTORLESS Ignition System (Dis) 2.3L Notes Test 1, Check ECA For Fault Codes Test 2, Check For Spark During Crank Test 3, Check Dis Module Pip Out Test 4, Check Pip Out Continuity Test 5, Determine Missing Spark Combination Test 6, Check Plugs & Wires Test 7, Check Dis Module VBAT Test 8, Check Dis Module Ignition Ground Test 9, Check Dis Module Mounting Screws Test 10, Check Right Coil Pack Circuits Test 11, Right Coil Pack Fault, Isolate Dis Module Test 12, Check Right Coil Pack VBAT Test 13, Check Right Coil Circuit Test 14, Check Pip D At Dis Module Test 15, Check Dis Module Coil Drivers Test 16, Check Right Coil Pack VBAT Test 17, Check Right Coil Circuit Test 18, Check Right Coil Circuit Test 19, Isolate Dis Module From Pip D Test 20, Check Crankshaft Sensor VBAT Test 21, Check Crankshaft Sensor Ignition Ground Test 22, Check Crankshaft Sensor Pip S Test 23, Check Pip Circuit For Short To Ground Test 24, Check Pip Circuit For Short To VBAT Test 25, Check Crankshaft Vane Test 26, Isolate EEC-IV Processor (ECA) From Pip Circuit Test 27, Check Pip EEC Circuit For Short To VBAT Test 28, Check Pip EEC Circuit For Short To Ground Electronic DISTRIBUTORLESS Ignition System (EDIS) 4.0L Engine Notes Test 1, Check ECA For Fault Codes Test 2, Check For Spark During Crank Test 3, Check Pip At EDIS Module Test 4, Check Pip Continuity To EEC Test 5, Check IGND At EDIS Test 6, Check IGND Continuity To EEC Test 7, Check Plugs & Wires Test 8, Isolate EDIS Module/Pip Fault Test 9, Check Pip Circuit For Short To Ground Test 10, Check Pip Circuit For Short To Power Test 11, Check PWR GND To EDIS Module Test 12, Check PERF. W/O EDIS Diagnostic Cable Installed Test 13, Check PWR GND To EDIS Module Test 14, Check For VBAT Open To EDIS Module Test 15, Check VRS+ Bias At EDIS Module Test 16, Check VRS Amplitude At EDIS Module Test 17, Check VRS+ Bias/Isolate VRS/Bias Fault Test 18, Check VRS+ High Or Low/Bias Fault Test 19, Check VRS+ Circuit For Short To Ground Test 20, Check VRS+ Circuit For Short To VBAT Test 21, Check VRS Bias Test 22, Check VRS High Or Low/Bias Fault Test 23, Check VRS Circuit For Short To Ground Test 24, Check VRS Circuit For Short To VBAT Test 25, Check VRS Amplitude At EDIS Module Test 26, Check VRS Resistance Test 27, Check VRS Air Gap & Trigger Wheel Test 28, Check VRS High Or Low Resistance Test 29, Check VRS+ Shorted To VRS Test 30, Check VRS+ For Open Circuit Test 31, Check VRS For Open Circuit Test 32, Check For IDM Short High Test 33, Check For IDM Open Circuit Test 34, Check IDM Output From EDIS Module Test 35, Check For IDM Short In ECA Test 36, Check For IDM Short To Ground In Harness Test 37, Check For IDM Short To VBAT In Harness Test 38, Check Base Timing Test 39, Check Advance Spark Angle Test 40, Check Saw At EDIS Module Test 41, Check Saw For Short In EDIS Module Test 42, Check For Saw Short To Ground In Harness Test 43, Check For Saw Short To VBAT In Harness Test 44, Check For Saw Open Test 45, Inspect VR Sensor & Trigger Wheel Test 46, Check VBAT Open To Coil Test 47, Verify Vehicle Operating Mode Test 48, Check C1, C2 & C3 At Coil Pack Test 49, Check C1, C2 & C3 At Coil Pack Test 50, Check C1, C2 & C3 At Coil Pack Test 51, Check C1, C2 & C3 At EDIS Test 52, Check C1, C2 & C3 At Coil Pack Test 53, Check C1, C2 & C3 At Coil Pack Test 54, Check C1, C2 & C3 Coil Primary Test 55, Check C1, C2 & C3 For Short To Ground Test 56, Check C1, C2 & C3 For Short To Ground Thick Film Ignition (TFI) IV Fuel System Idle Speed & Ignition Timing Throttle Position Sensor (TPS) Adjustment Fuel Injection Pump Lever (FIPL) Sensor Adjustment Summary