What causes a CDI controller to set a blocking code?
The CDI controller will set a code if an attempt is made to start the engine but it did not turn, the “Blocking” code is the one you will see. There could be a blown fuse or defective starter relay. 155700 (P155700) [Stored] Engine cannot be started. (Blocking)
Why does my air compressor not start when the tank is full?
If the motor starts when the tank is empty of air but won’t restart when the tank is full, replace the check valve. If your air compressor won’t restart after the tank fills, the check valve might be the problem.
How to diagnose no start with OM642 diesel?
Use the relative compression test to check for a cylinder balance problem, 7 rpm difference is the spec. You can also use a scope to check the relative compression and battery health via the amperage waveform, or an amp clamp to check starter current draw. Is the engine seizing / binding?
Why is the check valve on my air compressor stuck?
Flip the pressure switch control lever to the Auto position. If the pump starts when the tank is empty, then the check valve may be stuck open. The check valve prevents tank air from back flowing to the pump. A stuck-open check valve causes high pump head pressure, preventing the compressor from restarting.
How do you do a compression test on a car?
To do this, you should purchase a compression gauge to do a compression test. Make sure you disable the engine, so it does not start while you are testing the cylinders. Remove the ignition coil and spark plug from the cylinder you’re testing. Insert the compression gauge extension and screw it in.
The CDI controller will set a code if an attempt is made to start the engine but it did not turn, the “Blocking” code is the one you will see. There could be a blown fuse or defective starter relay. 155700 (P155700) [Stored] Engine cannot be started. (Blocking)
Why do I have no compression in my engine?
If you are getting no compression at all in your cylinders, you probably have a bad timing belt or a broken camshaft. Now that you know some of the most common causes of low engine compression, what should you do about it?
Do you need a battery for a CDI?
The cdi only receives signal from the pick up coil to signal the ignition coil to spark and does not require a battery. Your battery is only for your lights & your starter. The stator charges the battery & nothing else. 90 psi is low. You need nearly 110 psi. Check your valve clearances or replace your top end components.