It just recently started running with rough idle at start up until the machine gets up to operating temp then it runs smooth.
It will start up and run for about 1 minute and then stall. I fire back up and bring the RPMs up and let off the gas and it will idle for a bit and then stall.
After about 5 minutes the machine roughs perfect.
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My theory. I have some seepage around the exhaust manifold gasket area. I am thinking the fuel map is hunting around at cold start due to the exhaust gasket seepage, The computers is trying to find the right fuel spray but it can’t because of the exhaust out. It can not find the right fuel ratio map?
Running rich? Until the machine gets up to temp, then all good!?
NOTE: this problem got much worse when temps dropped below 50 degrees
Your thoughts?
