It says ION sensing module cylinder id fault. What does that mean, please?
P1340 Ion sensing module cylinder ID fault.
The ion sensing module is another name for ignition control module its function is to energize and de-energize the primary ignition coil in response to signal from the control module. This code can be set from shorted out sparkplugs, injectors,poor ignition coil wiring,and even the PCM
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