deere 445 runs rough

[tonyd6383]

hello i just bought 98 john deere 445 it was not runnig whn i bought it i just got it to run but its rough i clean out the throtle body and cleaned the fuel injector ,fresh gas and plugs any thing else i can try thanks

 

[beenthere]

:welcome:
No good ideas. Have you checked the compression? Checked/replaced the fuel filter?

 

[tonyd6383]

hello yes i have also check the fuel presure and that was fine , i talked to a mecanic today and he said if the temp gage is not working that could be 1 problem ,because the temp sendind unit works with the manifold air sensor . witch both parts will set the right fuel and air. i called j d and its over 300 for the parts . iam willing to try it

 

[beenthere]

Which parts are you going to replace?

 

[tonyd6383]

iam going to replace the temp sending unit ant the manifold air sensor

 

[toyfarm]

my temp gage on 445 don't work and it runs fine!

 

[toyfarm]

have you checked fuel injection wiring harness? They tend to get brittle, brake, fragile and will intermitt signal to injectors!