2003 SANTE Misfire

[aikenis]

My Excalibur 330 has a dead #2 cylinder according to the computer. The problem was noticed when my boat was recently being repaired due to hitting a stump. The tech noticed it missing at idle and hooked his computer up to my boat.

Pulled the plug and it is a little black. The plugs are a year old. The plug is getting power because arching can be seen. I guess my next steps are compression test and have the injector tested.

Any thoughts?

[core-rider]

RE: 2003 SANTE Misfire

Compression, fuel, and spark... Those are the 3 things you need. Since you have already checked spark your on the right course by checking the other two. I would recomend testing the injector signal before going to the trouble of testing the injector itself. Most auto parts stores sell some kind of tester that is basically a light that you plug into the injector harness. It will flash everytime the signal is sent to that injector. If that seems to be working okay, then take your investigatin to the injector itself. Compression test is pretty straight forward. Good luck and let us know how everything comes out.

[aikenis]

RE: 2003 SANTE Misfire

Thanks man! I will let you know. It will probably be a couple of days. I am in the middle of finishing a rebuild on my 6.5L diesel. =)

[AirTool]

Re: RE: 2003 SANTE Misfire

Most auto parts stores sell some kind of tester that is basically a light that you plug into the injector harness.

It is called a NOID light. You can also get a cheap 12 Volt LED at radshack to do the job. If you get a 2 or 3 volt LED, you will need a resistor to prevent burning out the LED. If you can't calculate the size, just keep looking for the 12V LED. If you connect it and it doesn't light, reverse the connections. LEDs are diodes and current flows in only one direction. If it doesn't work either way and glows attached to the battery, no signal to the injector.