What does p0305 code mean in Chrysler lhs?

Answer 1

TEST P0305-Al REPAIRING - CYLINDER #5 MSF1RE (OBD II)

Perform, DTC TEST Before Proceeding

Name of code: Cylinder #1, #2, #3, #4, #5, #6 Misfire

When monitored: With the engine running, after successfully performing a

crank sensor learn.

Set condition: When more than a 2% misfire rate is measured during two

trips, or with a 10% to 30% misfire rate during one trip.

Theory of operation: Misfire is detected by the crankshaft speed fluctuation

(CSF) method. This method compares the engine speed difference between

the cylinders in firing order. The speed is detected by the crankshaft position

sensor. An RPM value is set for each cylinder for comparison. When an RPM

difference of more than 10 RPM between cylinders, a misfire count of 1 is

recorded. The RPM can vary 1 to 10 RPM depending on engine load. Two

types of misfire are detected: a two-trip misfire, which is about 2% and

results in an emissions increase, or a one-trip misfire, which Is about

10-30% and will cause damage to the catalyic converter.

Possible causes:

• Secondary ignition wires

. Faulty connections

. Spark plug, wire, or connector

. Mechanical engine problem

. Injectors

•PCM

' ignition coil circuit

'Contaminated fuel