Tuesday, September 20, 2011

94 olds 3.4 L ,how do i test fuel injectors,?

the car when cold runs bad, the code said lean fuel , i have changed the fuel presure reg. fuel pump,and others , the fuel injecters were cleaned by a shop, they said i might have a bad injecter , or a bad injecter plug , check voltage ? where do i meter the plug and what is the voltage signal? runs good when warm !
94 olds 3.4 L ,how do i test fuel injectors,?
A good mechanic will be able to hook up a computer to your car, tell if you have a cylinder misfiring. If so, you could have a bad plug, wire, or injector. When you say it is running lean, chances are you have a vacuum leak, or a bad sensor. Take it to a mechanic, don't try to diagnose it yourself.
94 olds 3.4 L ,how do i test fuel injectors,?
sound like EGR and /or MASS sensor.



(when the injector,it does it all the time)



Please do not jump to the worse ,check first.



what ever is, has to do with running cold sys.