BroncoII4x4.com

Hey everyone my my bronco II is haveing a real problem keeping the fuel mixture even. runs rich a lot. when i try to speed up or when i let off the gas to a stop it chokes to the point of stalling. i already have relaced the Oxygen sensor and that actually seemed to make it worse. it has been in more a few days. so i think it should of started working. i also checked the MAP Sensor and it checked out. then i thought it could be a clogged fuel filter because it is hesitating at idle also, so i did that and it did nothing to help. the other one wasnt even bad.
The guy at NAPA also said it could be plugged fuel injectors. so i went and got two bottles at 12 gal concentrate each and put both in my tank with about 16 gallons. hope it works harder and better. but whatever. the truck is just pissin me off because it sucks to drive the way it is.

so i need some more ideas on what else i can check. alright thanks

check the egr valve, make sure its opening and closing. you have a spare computer???? or can borrow one??

forman621 wrote:The guy at NAPA also said it could be plugged fuel injectors.

fisrt time i ever heard that plugged injectors will run rich

i end up fixing it the oxygen sensor was not make contact with the new oxygen sensor wires. and i was able to get contact. and it is running a lot better now.