Clogged Injector??

[whiteman_01]

Hey Everyone. I think i may have a clogged injector. Whenever i pull off of a stop sign/light the car will studder, somtimes pretty bad, and somtimes will backfire through the intake. Once i get moving the car feels fine. A friends father in-law (he's a long time mechanic) feels that its an injector problem.

My question is, can i swap out my 3.0 injectors for the 3.2 ones that i have on my spare 3.2? Or should i try to get a cleaner that i can put right in the rail? Or is it somthing completly different?

I did check for intake leaks, i changed plugs, and i cleaned the maf.

 

[SASHO91]

did you pull any codes yet?

 

[SeanMc]

I had two clogged injectors and experienced the same issues. I put in a cleaned and flowbalanced set (-1...one of the new set wouldn't fire...yeah), and those issues went away. So even with 5 cleaned and balanced ones, and 1 of my old good ones, the idle has improved dramatically. Send them to RC Engineering (www.rceng.com), they do good work.

 

[shoson]

I see you do have a spare set to send out for cleaning. If you're looking for a set already cleaned and flowmatched from several sets and ready to mail out these might be for you.
http://www.shoforum.com/showthread.php?t=77854

 

[whiteman_01]

Josh, i havent pulled the codes yet, but i am going to do that hear in a little bit.

So can i use the 3.2 injectors on my 3.0??

 

[SASHO91]

yes you can. I would replcace the O-rings/Seals though.
There is a kit on ebay for $27.

 

[SeanMc]

RC Engineering includes new connections and o-rings.

 

[whiteman_01]

Ok, i pulled the codes.

1st= 519 (O) PSP switch/circuit open - PSP
2nd= 556 O,M) Fuel pump relay primary circuit fault - Power / Fuel Pump Circuits

I dont think any of this would be the prob. The 556 comes up if you stall the car correct?

 

[shoson]

Josh, i havent pulled the codes yet, but i am going to do that hear in a little bit.

So can i use the 3.2 injectors on my 3.0??

Yes you can they flow a little more. The difference from another thread on the forum: "The stock MTX injectors (23.7 lbs/hr @ 2.7 BAR or 39.2 PSI) can safely (85%duty cycle) support about 270cHP or about 225 wHP. The ATX injectors (24.3lbs/hr @2.7 BAR or 39.2 PSI) flow about 2.5% more fuel than the MTX units, so they are worth maybe another 5-8 cHP. If you push a set of ATX injectors a bit to 90% duty cycle, they can flow enough fuel to support 290cHP orabout 240 wHP."