Engines 119 CFI/LH-SFI

When diagnosing starting or warm up complaints, do not check engine at operating temperature, instead proceed according to specific complaint.

Diagnostic plug (060) to diagnostic socket (X11) Diagnostic plug (060) to dual ignition adaptor Knob to position "T1/1 & T1/2" Plug of dual ignition adaptor (055) to diagnostic socket (X11) 2) TN signal/on-off ratio signal connector 3) Trigger clamp (061) on ignition cable "1" Kilovolt clamp (062) and (063) on ignition cable "4" of ignition coil T1/1 and T1/2 Oil thermometer (064) in engine oil dipstick tube DC inductive clamp 1) (065) to battery G1 ground Exhaust vent hose (014) to exhaust pipe Vacuum connection with Y-adapter (068) to DI control module (N1/3) Vehicle data Engine oil temperature approximately 80 °C connect, disconnect connect, disconnect turn connect, disconnect connect, disconnect connect, disconnect connect, disconnect insert, remove connect, disconnect connect, disconnect connect, disconnect enter. warm engine up.

Testing with dual ignition adaptor (055) The dual ignition adaptor provides engine diagnosis on engines with dual ignition systems (engine 119) when using the Bear DACE (Model 40-960) engine analyzer. With the dual ignition adaptor (055), the single ignition circuits T1/1 and T1/2 are combined to an 8-cylinder ignition circuit. This enables the display of the single circuits and the complete ignition circuit on the oscilloscope. Next to the standard measurements, the diagnostic measuring methods for dynamic compression test, idle quality test and ignition system analysis can be performed. The switch on the dual ignition adaptor allows the selection of measurements on a single ignition circuit, for example: dwell angle, ignition timing, on-off ratio and voltage values of the primary/secondary ignition circuit. In the total display (switch position T1/1 & T1/2) with the osilloscope in the parade setting, the ignition impulse of ignition circuit T1/1 is shown first. At the end of the fade-out process, switch over to ignition circuit T1/2 occurs and according to firing order the next cylinder, including dwell and current draw are displayed.

	Engine analyzer		Switch position Dual ignition adaptor (055)
	Cyl. number	Trigger clamp
Dwell angle	4 cylinder	Cylinder 1	T1/1 or T1/2
Ignition timing	4 cylinder	Cylinder 1 Cylinder 2	T1/1 T1/2 Measured angle minus 90o CKA
On-off ratio	8 cylinder	Cylinder 1	T1/1 or T1/1 & T1/2
Ignition oscilloscope	8 cylinder	Cylinder 1 Cylinder 5	T1/1 & T1/2 T1/1 firing order 1 - 4 - 6 - 7 T1/2 firing order 5 - 8 - 3 - 2
Compression	8 cylinder	Cylinder 1	T1/1 & T1/2
Idle quality	8 cylinder	Cylinder 1	Idle quality test. Set engine analyzer to TN signal

Equipment

Engine analyzer 1)	Bear DACE (Model 40-960) Sun MEA-1500 MB
Dual ignition system adaptor	Bear 43-322

1) Available through the MBUSA Standard Equipment Program.