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Difference between throttle body on gasoline and diesel engines

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 Throttle body in Gasoline engine The ratio A/F optimal for gasoline to burn completely in the engine combustion chamber is 14.7/1 (14.7 grams of air / 1 gram of gasoline). Therefore on gasoline engines will depend greatly on the amount of air intake. ECM will calculate the amount of fuel injection based on the amount […]

What is boost pressure sensor (BPS)?

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Boost pressure sensors are used in turbocharged engines to provide air pressure information and air and fuel ratios in order to regulate engine performance. As a complex piece of technology, a boost pressure sensor has been an impressive addition to engine technology. Boost pressure sensors control the boost level produced in the intake manifold of […]

HOW TO RETRIEVE AND SAVE FLEET CALIBRATION USING DETROIT DIESEL DIAGNOSTIC LINK (DDDL)

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HOW TO RETRIEVE AND SAVE FLEET CALIBRATION USING DETROIT DIESEL DIAGNOSTIC LINK (DDDL) Figure 1.1: Open Cal Data Files (Vehicle^1) # To Retrieve the Calibration with DDDL 1). Connect DETROIT Engine (DDEC) using Detroit Diesel Diagnostic Link (DDDL v6.46). 2). Once connected, open Calibration menu then Retrieve. Figure 1.2 – Calibration (Retrieve) 3). It will […]

Engine Overheating

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1. Why do engine overheat ? An overheated engine can be caused by anything that decreases the cooling system’s ability to absorb, transport and dissipate heat; therefore engines can overheat for a variety of reasons. Some of the most common causes. Cooling System Leaks This is the primary cause of engine overheating. Possible leak points […]

Calibrate Throttle Position Sensor for Bobcat 5600

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1. Description The drive system calibration procedure shows how to calibrate the drive system by following the service analyzer instructions displayed on the Service PC.The travel pedal and brake calibration procedures show how to calibrate the travel and brake pedals output ranges by following the service analyzer instructions displayed on the Service PC. 2. Bobcat […]

Accessing Parameter Lockout CAT ET Software

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The Parameter Lockout function allows parameters to be locked so that they cannot be changed anywhere in the Service Tool by service Mechanics. To unlock the parameters, Factory or Customer Passwords are required. Accessing To run the Parameter Lockout function: 1). Connect CAT ET 2022A to the Service Tool connector. 2). Select Parameter Lockout from the Service Menu. 3). The Parameter […]

How To Programming Engine Cooling Fan For Caterpillar On-Highway Trucks

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HOW TO PROGRAMMING ENGINE COOLING FAN FOR CATERPILLAR ON-HIGHWAY TRUCKS Figure 1.1 – Cooling Fan Drive and Clutch (C13 Truck) (A). Accessing the Configuration on CAT ET software – Input Selections and Output Selections: 1). Fan Control Type The Fan Control Type parameter determines if the ECM is used to operate the Engine Cooling Fan, […]

EXHAUST GAS RECIRCULATION (EGR), AND WHY WE NEED EGR COOLERS

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Exhaust Gas Recirculation Basics The Exhaust Gas Recirculation (EGR) system is sometimes misunderstood as to its function and purpose. In many countries around the world, the emissions of Nitrogen oxide (NOx) from diesel and gasoline vehicles are restricted by legislation. EGR is an effective technical solution to control NOx values. The principle of EGR is […]

Throttle position sensor

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1. Functions and duties of throttle position sensor Throttle position sensor is used to measure the open position of the throttle to report to the ECU. From there, the ECU will use the information signal sent by the throttle position sensor to adjust the fuel injection time, cut off the fuel, early ignition control, adjust […]

Fuel Injector

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1. What is Fuel Injector ? A fuel injector is an electronically controlled mechanical device which is used to inject/spray (just like a syringe) the fuel into the engine for the preparation of correct air-fuel mixture which in turn provides efficient combustion to the engine. The position of the fuel injectors differs for different engine […]