Clogged Injector. Where to get cleaned/repaired?

[Diabolic]

I believe I have a clogged 42# injector. Not sure which one it is but I'm fairly certain one is bad. Anywhere to get it checked and cleaned locally?

[greenbullitt]

why not buy a single replacement? 99-04 lightning

[Diabolic]

I don't know which one it is. I just know that the truck was running great today then all of a sudden it went dead lean like 18.1 afr at idle and surging between 16-18 while driving. I tried to create and upload several new tunes but they all did the same thing. I looked at the datalogs and all the sensors looked to be spot on. I reinstalled some old 30's and with a tune for the 30's it ran just like stock again. I drove it all evening running great.

[psdtech]

Sounds more like a cop (if you have them) any miss will cause a high afr. Most of he time an injector will slowly clog and you will get single bank lean codes before any drivability problems

[Diabolic]

I bought them used and installed them last week. The truck ran super lean immediately just like it was doing yesterday. Even when I dropped the injector slope to 29 from 42 it ran rough. The AFR gauge read correctly, but the truck was missing. I'm assuming I was making the other injectors fire way too much, actually running too rich on 3 cylinders, and the 4th was hardly firing. I drove it around for a few days messing with stuff thinking that 42's were just too much for a speed density ecm with only 1 slope. Some mornings it was rich as crap, like 11.5, and then later that day it was 14.7 ish but running really rough. Then all of a sudden I decided to start over from scratch. I installed everything by the book according to the specs Ford released for the green top 42's. This was just the way I started when I first installed then, only this time it ran great! Idle was a little rich and the Lambse was asking for 13.3 at idle. I made 10% increase to the VE tables and bingo, the Lambse values were at 14.5-14.9 and the idle was smooth as stock. I drove it all day happier than a pig in shit, but remembered I had forgot to turn off the thermactor in the tune. I did that, hit update and then pulled into the parking lot and shut it off. When I started the truck agiain it was right back to running super lean like it did when I first installed the injectors and missing. I tried loading and reloading the tune with no success. All the sensors, tps, map, ect, act, etc.....were all just exactly like the datalog when it ran great. The only difference was the oxygen sensor was at .08 volts instead of .6-.8. The Lambse showed 10.0 so it was commanding all it could, but the afr was in the 17's to 18's. I forced open loop and it got worse by leaning into the high 18's and dying. Reinstalled the 30's and it runs like a top.

I thought it might be the Binary editor or the laptop so I installed it in my 95 Cobra and not a single issue. This is when I decided it had to be the injectors. One must be stuck closed or clogged causing a really lean condition. I can add more fuel to the other 3 cylinders on that side intil the AFR comes into range, but it runs bad because of the one dead cylinder.

[dville_gt]

find one of these:

http://www.amazon.com/Waekon-WAE76462-Universal-Electronic-Injector/dp/B0002SR5LW

and/or pull the rail off the intake and crank and note the spray pattern for each injector.

or just send them to http://fuelinjectorconnection.com