update on 06-07 115hp etec/ stumble-miss

[jrdplowing]

had motor out all day sat and it ran good at all rpms, the only thing i noticed is that at around 4000 rpm, maybe just a slight 50 to 75 rpm fluctuation on the tach, but is almost unnoticable from the motor, iam thinking maybe was a dirty spark plug problem, but makes you wonder if these motors are set to run so clean how could that be, and for doing the fuel pump tests i am still going to figure out how to do it and identify the pumps in the fuel system, thanks for info and suggestions

 

[seahorse5]

Re: update on 06-07 115hp etec/ stumble-miss

When was the last time the exhaust sensor tube, restrictor, and hose was cleaned?

What is the top rpm with a normal load on board?

 

[jrdplowing]

Re: update on 06-07 115hp etec/ stumble-miss

i think i like where you are headed with this, never, and i never heard of it, but because i always run regular 87 octane gas it could be dirtying up a sensor, but my top rpms are right were they should be, at 5300-5500 rpm, would the info i need to clean the sensor or be able to find it be in the service manual, thanks