
2 minute read
Tech 2 Data Reference Values
Data lists are provided in order to check the condition of the main unit and each device. With the basic values, compare each item of main unit data and find values which are temporarily or continuously different from the reference values and use these in trouble diagnosis. (This Tech 2 display menu is subject to change without notice.)
Data display item Unit Idling reference value (varies according to main unit conditions)
2 pumps relief reference value (varies according to main unit conditions) System voltage V 28.2 - 28.6 28.1 - 28.6 Main relay voltage V 27.7 - 28.4 27.6 - 28.3 Target idling speed min-1 800 2212 Engine speed min-1 799 - 801 2204 - 2208 Accelerator degree of opening % 0 100 Commom rail pressure variability MPa -1 - 0 -2 - 0 Commom rail pressure sensor V 1.4 3.5 - 3.7 Commom rail pressure F/B mode Feedback Mode SCV duty % About 35 - 36 About 21 - 22 SCV F/B mA About 925 - 980 About 588 - 654 Coolant temperature sensor V 0.6 0.4 - 0.5 Engine coolant temperature ℃ 70 - 73 78 - 83 Intake air temperature sensor V 2.1 - 2.2 Intake air temperature ℃ 31 Fuel temperature sensor V 1.0 - 1.1 1.1 Fuel temperature ℃ 51 - 52 50 - 51 Atmospheric pressure sensor V 1.9 1.8 - 1.9 Atmospheric pressure kPa 97 - 99 Boost temperature sensor V 3.8 - 3.9 3.8 Boost temperature ℃ 44 - 45 47 - 48 MAP sensor V 1.0 3.1 - 3.2 Manifold absolute pressure kPa 101 About 243 - 244 Engine oil pressure sensor V 1.3 - 1.4 2.1 - 2.8 Engine oil pressure kPa 216 - 232 440 - 536 Main fuel injection timing ℃ A 2 6 No.1 cylinder fuel in amont jection correction mm3/st No.2 cylinder fuel in amont jection correction mm3/st No.3 cylinder fuel in amont jection correction mm3/st No.4 cylinder fuel in amont jection correction mm3/st -
Data display item
Engine mode EGR position variabilty EGR motor duty EGR position 1 EGR position 2 EGR position 3 Starter switch(ON) Starter switch(ST) Idle manual switch
Idle up switch Idle down switch Glow relay Glow lamp Diagnostic switch Q-adjust resistance data 1 Q-adjust resistance data 2 Q-adjust resistance data 3 Unit Idling reference value (varies according to main unit conditions) Fuel mode 2 pumps relief reference value (varies according to main unit conditions)
% -20 - 0 0
% 0 - 97 ON/OFF Either 1,2 or 3 is ON ON/OFF Either 1,2 or 3 is ON ON/OFF Either 1,2 or 3 is ON ON/OFF ON ON/OFF OFF ON/OFF Auto 17
ON/OFF OFF ON/OFF OFF (ON immediately after key switched ON) ON/OFF OFF (ON immediately after key switched ON) ON/OFF OFF ON/OFF OFF Varies according to main unit conditions Varies according to main unit conditions Varies according to main unit conditions