Injector Problem

[91sleeper240]

ok I replaced 2 fuel injectors last week, #3 and #4 were both dead. Anyways car ran great for about a week, then one night at a light, it started to idle a bit more rough, and I could feel hesitation when accelerating. My gas mileage also worsened. When I umplug the fuel injectors, the engine reacts to all BUT the #4 injector. Which means it is either the injector, or something to do with the wiring? Anyone have a clue what it could be?

'91 s13149,xxx milesSome bolt

[vancouverbc]

you could put one of the working injectors in cylinder 4 to see if it is wiring. or use a multimeter. using a multimeter saves you from pulling injectors.

im not sure if a badly leaking lower o-ring would cause this. they obvously get damaged in installation. when you pull the electrical connector, it obviously continues leaking so there might not be a change in hp.
Modified by vancouverbc at 2:28 PM 1/23/2008

[4cefed]

I'm seeing a lot of injector problems on this board. I'm having some of my own. Is this a normal thing or just some bad luck from a few people?

[justy90240sx]

ive seen alot of these cars with leaky injectors. did u replace all 4 sets of o rings when u installed the new 2b injectors

[grmreapr]

check your wiring I had the same thing on cylinder three turns out one of my wires was grounding out use a multi meter or spend three hours going threw everything like i did to make sure