We have a modified circle track 2.5 that occassionally, but usually not always at least once per race gets this hitch or bog where the engine kinda cuts out somewhere between 4,500 and 5,000 at WOT, for a short duration. Been there most of the season and we just put in a new motor and it is...
well i thought it was the map sensor, wasnt that, changed the fuel filter wasnt that. car still jerks and hesitates while 3/4 to full throttle boosting 3500 rpms and up. i cleaned the contacts on the injectors, tested them-ran .01-.0 ohms. i dont know what else it could be.
This is a 93 Plymouth Grand Voyager. "Sport" "LE" 3.3L
bad gas mileage
no computer codes
O2 sensor checked
The hesitation occurs only under load and when the throttle is almost wide open at anywhere from 25 to 60+MPH. It is continuous unless you alter the throttle...