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Suzuki 2006 DF 40 Outboard - Starts and Idles on 2 Cylinders. 3 misses but is getting spark and fuel??

df40-mechanic

New member

NO DIAGNOSTIC BLINK CODES BEING SHOW​

  • Installed replacement injector on CYL 3. Motor exhibited same symptoms. Listened to all 3 injectors with a long screwdriver. Sound present on all 3 although 3 seemed "quieter"​

  • Isolated issue to cyl 3 by removing COP coils for each cyl in sequence​

  • Suspected Coil swapped with cyl 2 coil - no difference - Coil 3 seems OK​

  • Swapped out plug in CYL 3. No difference.​

  • Looked at spark on 3 it sparks - thought it was intermittent - but it was not.​

  • Suspect BAD ignition or injector timing however no No Error Codes for CKP or CMP showing on indicator LED​

- IS THERE ANYTHING ELSE I CAN CHECK?​

- Would the Suzuki Diagnostic cable and software be of any use?​


Thank you in advance for any assistance!​

 
More INFO:

FROM THE SERVICE MANUAL - NOTE 1:​

  1. No spark or injection signal will be supplied to the cylinder corresponding to the faild CKP sensor. If two or more CKP sensors have failed at the same time, the engine will stop.​

 
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