bkivi
New member
I have been chasing a problem for a month now. See other posts under my name if needed for complete history.
I have a JOhn Deere 445 year 2001. Fuel Injected, 22 HP kawasaki enigne. WHen trying to start it when cold, it fires and backfires and spit and stumbles. But, if I use a very small shot of starting fluid it fires off and start to run. Once it warms up it will run, but the governor cycles the engine from low RPM to higher RPM continously. I took off the small vacuum hose leading to the MAP sensor and the cycling stopped. I wouldn't say it is running great, but it runs and I can blow snow. Now if I hook the hose back on while the engine is warm it goes back to 1 second cycling. If I unplug the MAP sensor it dies out completely.
Becasue the MAP sensor costs so much ($275) I was wondering if anyone knows of a way to "fool" or bypass the MAP sensor to see if I can get a better handle if it is actually the MAP sensor that is bad.
If anyone has any suggestions, please respond. Oh, by the way I did replace the plugs, fuel filter, air filter. Also changed the small 2" hose thats on the fuel pump inside the tank.
I have a JOhn Deere 445 year 2001. Fuel Injected, 22 HP kawasaki enigne. WHen trying to start it when cold, it fires and backfires and spit and stumbles. But, if I use a very small shot of starting fluid it fires off and start to run. Once it warms up it will run, but the governor cycles the engine from low RPM to higher RPM continously. I took off the small vacuum hose leading to the MAP sensor and the cycling stopped. I wouldn't say it is running great, but it runs and I can blow snow. Now if I hook the hose back on while the engine is warm it goes back to 1 second cycling. If I unplug the MAP sensor it dies out completely.
Becasue the MAP sensor costs so much ($275) I was wondering if anyone knows of a way to "fool" or bypass the MAP sensor to see if I can get a better handle if it is actually the MAP sensor that is bad.
If anyone has any suggestions, please respond. Oh, by the way I did replace the plugs, fuel filter, air filter. Also changed the small 2" hose thats on the fuel pump inside the tank.