Typical tests
The pressure transducer has become the essential diagnostic tool to assist with a multitude of pressure related tasks from -15 psi up to 500 psi, so replacing the majority of analog gauges used today. With the ability to measure pressure against time we can now witness rapid events taking place that were never previously visible. Below is just a selection of how the pressure transducer takes diagnostic to a whole new level. (Adaptors will be required)
- In-cylinder pressure tests
- 4-stroke cycle visibility
- Exhaust gas pulsations
- Intake manifold pressure fluctuations
- Crankcase pressure measurements
- Diesel injector back leakage tests
- Fuel pressure tests up to 500 psi
Example tests
Engine
- Cylinder compression testing (Cranking)
- Cylinder compression testing (Idle)
- Cylinder compression testing (WOT snap test)
- Intake manifold pressure petrol and diesel
- Exhaust gas pressure pulsations
- Exhaust back pressure evaluations
- Crankcase pressure pulsations
- PCV valve operation when you have high crankcase pressures
- Camshaft timing evaluation (Belt, Chain and Gear Driven)
- Cylinder head valve sealing integrity
- Engine oil pressure testing
- Cooling system pressure evaluation-Head gasket failure
- Radiator cap evaluation with over pressurized cooling systems
- Vacuum pump efficiency
Fuel
- Fuel delivery pressure, Petrol
- Fuel pressure regulator test, Petrol
- Fuel delivery residual pressure test, Petrol
- Fuel delivery/priming pump efficiency, petrol and diesel
- Fuel positive priming pressure, Diesel
- Fuel negative priming pressure, Diesel
- Fuel delivery residual pressure, Diesel
- Fuel injector back leakage test, Diesel
- Fuel injector contribution evaluation test, Petrol
- “Evaporative loss” control vacuum circuits and solenoids
Turbo
- Boost pressure evaluation (Variable vane errors)
- Boost control vacuum circuits and solenoids
- Waste gate operation
Engine Management
- Variable induction system actuator/control integrity test.
- Idle control damper integrity test.
- Cruise control actuators, vacuum circuits and solenoids.
Chassis
- Air suspension pump efficiency
- Air suspension residual pressure testing
- Air suspension control pneumatic circuits & solenoids
- Brake servo evaluation and integrity test
Transmission
- Auto transmission line pressure testing
- Auto transmission governor pressure testing
Mechanical
- Cylinder head gaskets
- Broken/stuck rocker valves
- Blocked exhaust / DPF
