What is the error code for cylinder 2?
Error code P0302 is a common error code that signifies a misfire issue on the engine’s cylinder, specifically cylinder #2.
What should the compression reading be on a gas cylinder?
Consistent compression readings (around 10% of each other), and at least 120 PSI per cylinder, minimum of 17-inchs of steady vacuum are all required for a smooth and complete combustion.
Why do I misfire all cylinders on one side of engine?
Because the exhaust can not escape the cylinder, it builds excessive pressure, and that cylinder will not fire properly. Each catalytic converter is connected to all the cylinders on one side; you will end up getting several misfire codes plus the typical P0300 random misfire code.
Can a bad ECU cause all cylinders to misfire?
A faulty Engine Control Unit (ECU) can cause multiple random misfire codes. A bad ECU will most likely cause misfire codes on all cylinders, but it may affect only specific cylinders in a few rare cases.
What does no compression on one cylinder mean?
“No compression” would indicate “zero” psi and that is unlikely unless the piston has the top blown out or one of the valves is held open significantly. Loosening the rockers to release the valves and then connecting air pressure to an adapter at the spark plug opening should isolate the cause of the leak.
Because the exhaust can not escape the cylinder, it builds excessive pressure, and that cylinder will not fire properly. Each catalytic converter is connected to all the cylinders on one side; you will end up getting several misfire codes plus the typical P0300 random misfire code.
A faulty Engine Control Unit (ECU) can cause multiple random misfire codes. A bad ECU will most likely cause misfire codes on all cylinders, but it may affect only specific cylinders in a few rare cases.
How do you replace a spark plug in a compression test kit?
There are several adapters in a compression test kit. Two of them (with the tubes in the picture above) are to hold directly against the cylinder hole where the spark plug was. The other four are to replace various size spark plugs. Use the correct size adapter to screw into the spark plug hole. With this kit you screw the hose into the adapter.