bog after pulling/reinstalling block

[mickyd32]

Sled is a 2013 pro 800 155

I pulled my block to have a new mechanical seal installed in the water pump. Now on my first tests drives after I'm getting a bog, I wasn't running the hood as I was in the process of bleeding the coolant system and was only really riding the sled as a test.

Now I'm looking for what could be different and causing my bog

I experienced it at a variety of RPM and throttle combinations. There didn't seem to be any real pattern. Had everything from an engagement hesitation, to a higher RPM stumble, and an on the throttle off and back on hick up.

This is what I did while pulling the block and reinstalling that has changed that i am looking at tomorrow as potential causes;

-Had a plug wire that wasn't fully seated, good connection now
-added a fine layer of dielectric grease to all connectors, could I have a bad connection now?
-there is oil in the cylinders, the top end was off and possibly have some oil/assembly grease causing poor detonation
-going to check TPS calibration (is a full SLP stage 3 so will check with the PCV software)
-initially throttle cable was too tight and was causing the sled to shut down when the steering was all the way right, so will check on that

what else should I be looking at? Have a ride planned for new years day and I'd like the sled to be up and running as it should

 

[tundramonkey]

Did you calibrate the TPS setting in the PCV before you took it out on the test ride?

 

[mickyd32]

I have recalibrated the TPS, changed plugs, pulled, checked, and reconnected every connection and have gotten no where. I have also pulled and checked the injectors, thought maybe I had an issue there, but I have not found anything

It still bogs and the check engine light is on now that I got my hood back on.

Is there a way to check for engine codes without digital wrench?

 

[BILTIT]

Yup, it's in your manual.

 

[mickyd32]

ya I found it shortly after I posted

code thats coming up is 173-003
corresponds to the EGT sensor being >4.9v

called my dealer they walked me through cleaning the censor. they say it could be built up. here's to hoping

otherwise its $200 sensor

 

[BILTIT]

How did you clean it?

 

[mickyd32]

basically just pulled it and gave it a light sanding with a scotchbright pad

ran an O-ring pic around the port in the pipe checking for buildup, none to be found.

 

[mickyd32]

also tried a different sensor out of the sled sitting beside mine, same code comes up. Is there a way of clearing codes?

 

[BILTIT]

Some will clear when you shut the engine off for a length of time, others I think the dealer has to clear it.

 

[mickyd32]

I'm going to try heating the sensor up with a heat gun. I wonder if I have oil/antifreeze in the exhaust or something dumb that its getting wet

I dunno, this is new to me

 

[mickyd32]

I used high temp silicone on the exhaust donuts, but there was no sign of silicone on the sensor, not sure what else it may be

 

[BILTIT]

The wiring between the ecu and the sensor?

 

[die hard poo]

It takes a few minutes running the sled to get the code to clear with a good sensor.

 

[mickyd32]

simple solution, run the damn thing

Reading in the service manual it says that you need to run the sled for a min of 60 seconds and that the sensor needs to see a variance in exhaust temp and RPM

So after cleaning the sensor and just starting the sled up and quickly checking for a code wasn't enough

I put it all back together and went for a quick burp. 300 feet in after warming the sled up the light went out and it ran good

I'm going to call it case solved!

now to go open another case. A case of beer!

 

[BILTIT]

Excellent!