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I'm a Noob and need injector help please!!

B

Blowblackorgetback

New member
Ok so I bought a 2000 gtp last night ran good on the hour and a half drive home went out this morning to start it and it started running really rough so I went to work and when I got back I started it and it was running perfect so I went ahead and put new plugs wires and fuel filter and also added a cold air intake..
Then it started doing it again after driving it for a while so I scanned it and it shows cylinder 3 injector circuit open. And cylinder 3 misfire so could you guys help please


And if I do need a new injector should I buy a whole set of aftermarkets or just buy one new stock one??
 


Check the wiring to that injector.
With the key on the +12 volt wire should be hot for all injectors.
Swap injectors - #3 with #5 or #1 and see if the DTC follows.
If DTC follows then replace the injector.
If you still have an open circuit on #3 then there's a problem with wiring or PCM.

Other things you could try with the injector in hand:
Check the resistance across the two injector leads. It should be about 13 ohms or something.
OL or infinite resistance means the coil is open (open circuit).
Take a 12 volt power supply and connect it to the injector. Situate the wires before turning the power on.
It should make a "click" sound.
No "click" means the coil is open (open circuit).
 
Thank you I will go try all those things the thing that is weird to me is it'll run fine for a while and then crappy for a while and vise versa if it is the computer how much will that set me back?
 
dsmuts said:
Circuit open means its unplugged usually.
Click to expand...
You are right on the money went out this morning and pulled the plastic cover off the motor. I noticed when I wiggled the injector plug one way it smoothed out so I pulled it off and cleaned it up and put some dielectric grease in it and shes running awesome now
 


I had an injector missing on my GTP just last week. Go to a shop or if you know a mechanic that has a computer that reads codes, like a Tech2?? I think that's what they are called, or something like that, but you can hook it up to the wiring in your car and get a reading, also, take off the supercharger cover and unplug the wires that lead to the 3 missing injectors, the white, plastic plugins could be oozing fuel back up into the outlet, which is a sign that it's the injectors. My car was running sporadically too, it was an easy fix though.
 
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