Bad injector?????
Bad injector????? I have been getting almost a misfire feeling from my 94 superchaged and built t.a/ Ive replaced all wires, plugs, opti, fuel filter and pump.... I have green top 42lb injectors. So i started unplugging them with the car running and when i got the the number 4 cylinder i had no change when unplugged. And when i plugged in my noid light kit the plug is putting out signal strong. If i was to put in a diff injector would it run better or would it have to be another green top 42? The pcm is programmed for them spec....
Are you SURE that the "craptispark" is firing #4?? What's the plug reading look like? If that checks out, then:
Check across the pins on the inj, with a VOM. See if the coil is showing "open". If not open, get the ohm reading. If it's OK, then swap the inj to another cyl, and see if the problem follows.
Have you done a leakdown, or compression test?
Check across the pins on the inj, with a VOM. See if the coil is showing "open". If not open, get the ohm reading. If it's OK, then swap the inj to another cyl, and see if the problem follows.
Have you done a leakdown, or compression test?
injectors run off pressure and they "inject" what is being flowed into them.
grab you an air tank and a 12V battery. hook up the air tank to your fuel rail, and slightly turn the air tank open and then run your leads on the battery to each injector and ones that don't hiss at you are bad
grab you an air tank and a 12V battery. hook up the air tank to your fuel rail, and slightly turn the air tank open and then run your leads on the battery to each injector and ones that don't hiss at you are bad
