Auto diagnostics

The way to Inform Which Diesel Injector Is Negative Testing to get a Failed Injector using a Thermo-Gun1Raise the hood from the vehicle and commence the engine Auto diagnostics. Let the engine attain regular operating temperature that is amongst 180 and 195 degrees Fahrenheit.2Point the thermo-gun at the exhaust manifold automotive diagnostic tools.

The manifold has exhaust outlets which are indicated by the number of cylinders the engine has. Point the thermo-gun at every outlet on the exhaust manifold. Record the temperatures at each outlet.3Refer for the service manual of the engine you might be operating on to establish in the event the temperature range falls inside specifications. An exhaust manifold outlet that reads below typical operating temperature could be indicative of a failed injector.

Figuring out Injector Failures having a Diagnostic Reader4Locate the vehicle's Deutsch connector, that is normally positioned beneath the dashboard on the driver's side. The connector will either be rectangular or round in shape. Get rid of the protective cap from the connector.5Connect the diagnostic reader towards the receptacle beneath the dashboard with all the right connector as necessary. Refer towards the vehicle's service manual to decide which connector is necessary.6Perform cylinder cut-out tests working with the diagnostic reader. Cylinder cut-outs need to be performed in firing order of your engine. Continue to shut-off cylinders till the diagnostic reader finds the cylinder which is not firing. That is indicative of a feasible failed injector.