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C320 ignition problem

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Old 03-07-2013, 02:51 AM
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C320 4-matic. Kawasaki ZZR-1400
Exclamation C320 ignition problem

Hi

I'm new to this forum. English language skills are not very good, but I hope that you will understand what I mean.

I have C320 and problem are next:

RMP speed to be high (over 5500 rmp / min) should be the next fault, cylinder 4 ignition failure. Fault will only cylinder 4
The fault is cleared when the car stops and starts again.

Attempts have been made to find fault as follows:

Experimented with two different MAF sensor to no avail.
Also tested a faulty MAF sensor, the fault code came MAF sensor.
This I wanted to test that other fault codes comes through

Spark plugs replaced.
Replaced ignition coil cylinder 1 from cylinder 4 Changed the plug wires to each other.

Secondary air injection shutoff valve cleaned and replaced with each other.

Changed the fuel nozzle cylinder 5 from cylinder 4.

changed the air and fuel filter.


I do not think that the problem would Camshaft Hall sensor, crankshaft hall sensor or Knock sensor,
because the fault is cylinder 4 It would be quite a coincidence that it hit the ground at the same cylinder.

Is the only chance that the ECU would be broken?
Old 03-07-2013, 07:28 AM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Unlikely to be the ECU but not impossible.

Replace the coilpack on No 4 with a new one.

Fit new plug leads.

Check engine harness wiring to No 4 coilpack. Corrosion etc in connectors.

Check fuel pressure at the Schrader valve on the front fuel rail. It should be > 3.8 bar or 55 psi while cranking.

Good luck.
Old 03-07-2013, 12:02 PM
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C320 4-matic. Kawasaki ZZR-1400
Unlikely to be the ECU but not impossible.
I have to remove the ECU wiring connector and watch if there's corrosion.

Replace the coilpack on No 4 with a new one.
I try cylinder 1 coilpack and plug leads.
error is as follows: The cylinder 4 is dropped completely out of the ignition system.


Fit new plug leads.
tested in the cylinder 1 plug leads.

Check engine harness wiring to No 4 coilpack. Corrosion etc in connectors.
Coilpack connector ok. no corrosion

Check fuel pressure at the Schrader valve on the front fuel rail. It should be > 3.8 bar or 55 psi while cranking.
fuel pressure without checking, but I doubt it.
Need to measure it.


Thank you for your suggestions


Just came to mind have to change the spark plugs still cylinder 1 to cylinder 4 and experiment with possible transfer of the fault when cylinder 1

I remember the failure occurred after I had renewed the spark plugs. I do not believe in it, but there is a small chance that the spark plug had broken
I hope so

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