What happens to the engine on a cold engine?
On a cold engine, the systems is running in “open loop” mode, which means most of the emissions control system sensors are being ignored by the computers. It us using preset values for everything. Once a certain temperature is reached, it goes into closed loop and begins using all its sensors to manage fuel and spark.
Why does my snowmobile lose power when it gets warm?
When it got down to 1/2 tank it started acting up. I pulled the air hose that runs from the right cylinder to the fuel pump, and it was giving me both positive and negative pressure with each revolution. This makes me think that it is not the seals, but I’m no expert.
What happens when you run straight water in the cooling system?
If you are running straight water in your cooling system then you are taking the chance the water will freeze in the motor and cause damage to the engine and cooling system. It sounds like you may ether have a leak somewhere or the coolant is being burned in the motor due to a potential blown head cylinder head gasket.
Is the warm engine undriveable when cold?
This time it started with an idle around 1500rpm, slowly dropped to 1k, then quickly cycled back up to 1500. It did this for a minute or two, then dropped down to the rough idle, which seems to run between 500-800, kind of hunting around. Is there a key sequence that is used to help it learn? The car is undriveable when warm.
When it got down to 1/2 tank it started acting up. I pulled the air hose that runs from the right cylinder to the fuel pump, and it was giving me both positive and negative pressure with each revolution. This makes me think that it is not the seals, but I’m no expert.
What’s the idle speed of a warm engine?
Would cycle between 500-800 rpm, kinda hunting and gagging around, at about a 1.5 sec interval. Let it idle for about 15 mins straight, not touching anything. Eventually, it smoothed a little to 600-800 rpm. Finally, i keyed it off, waited and started it again. Went up to about 1500 rpm initially, then dropped to 1000 for a bit.
Is there a way to re-learn a warm engine?
There is no set method to re-learn. It will over time on it’s own, but the proper method is to clean the throttle out fully then disconnect the battery if the adaptation needs to be reset. Otherwise it is just the drive and wait game.