Yds info

[Benoit]

Does anyone have the proper fuel injection interval numbers? Length of firing in milliseconds

 

[djetok]

A digital voltmeter would not update fast enough to keep up with an engine, even at idle. An analog meter might work but not ideal. The injector should fire 4.1 times per second at only 1000RPM.

@Benoit
from this thread https://jetboaters.net/threads/major-engine-problem.22875/ hope that helps

 

[Benoit]

I’m having a running rich issue with starboard motor. Yds shows twice as long injector opening as port.

 

[djetok]

I’m having a running rich issue with starboard motor. Yds shows twice as long injector opening as port.

@Gym

 

[bronze_10]

I’m having a running rich issue with starboard motor. Yds shows twice as long injector opening as port.

On all cylinders or just one?

 

[Benoit]

On all 4 cylinders. Tops of pistons are black like the plugs. Which are new this year. Port side pistons are grayish with clean plugs

 

[Benoit]

I swapped ecus last night. Will hook up yds to see if the injector [HASH=536]#’s[/HASH] went with them tonight

 

[bronze_10]

Good move..

 

[Benoit]

Swapped ecus and fuel pumps. No change on injector duration. 6ms on starboard. 3-3.5ms on port. Not sure how ecu decides this timing but must read something like a vehicle uses a maf sensor

 

[buckbuck]

I have a 2008 and had a Throttle Position Sensor go bad. It had an effect on the timing at idle. You may want to consider that.

 

[Beachbummer]

Did you save the output? Can you post it?

 

[Benoit]

I can’t post output. Just a couple bad pics

 

[Benoit]

I will check tps