idle surge on 1990 Dodge Caravan

just started erratic idle, will idle ok for few seconds the it tries to die and recovers. eventually it will die at idle. No codes set

Asked by for the 1990 Dodge Caravan
egr! or bad fuel pump
1 more answer
sometimes it bad gasoline...water vapor that accumulates in the ejection line or breather bell housing I think might be another cause for that. It happens to me on very rainey wet type of conditions or near an empty tank where perhaps water might accumulate and mix with the gasoline.