I have an 08 superduty with the 3v 5.4. The truck had high miles when I bought it, so I decided to put a set of injectors in it. Me being tight like I am I ordered some off ebay that were take outs from a place that does propane conversions on new trucks. The ones I bought were part ## 9C2E-A5A , 8556V, 0 280 158 193. They went in fine, and run fine. But after re-reading my auction, I noticed that they were for trucks built after mine, sometime in 08. Where mine was built 11/07. The injectors that were in it are stamped # 7c3e-ab 0 280 158 138 7-14-02-07-114234 The new injectors run MUCH better, and the comp says I'm getting better mileage, but when I was hooking up my trailer it smells pretty gassy at idle. No codes, no complaints. But does anyone know what the diffeerence between the injectors is?

 

Assuming injectors physically fit your application and mate up properly they'll differ in the amount of fuel per hour delivered. I myself don't know enough about the OBD II funtion whether it would detect an issue with too much fuel. Perhaps it doesn't at this point which is why no codes are indicated.

Someone more knowledgeable will certainly come along and answer this much better----soon I hope!

 

I agree that they are probably more lb/hr injectors. If someone here has the specs on them I believe that 5star may be able to account for that in my tune, instead of replacing them.

 

You can try a user here known as NumbersDummy or something similar----he seems to have knowledge of Ford part numbers and possibly their individual specs as well----maybe he'll have the lbs/hr etc you'd like to compare?

 

Thanks for the info. I found his page, but I must not have enough posts yet because it won't let me contact him.

 

So how many posts do I need before I can message someone?

 

He must have messaging disabled because his user page doesn't show a visitor message window, and everyone else does.

 

They aren't too much different of you would have a CEL (check engine light ) lit for the mixture being too far off. These are pretty sensitive to this due to the chokehold of the EPA. The part number often changes with different model years even if the part doesn't actually change.
Are they the same color?

 

They are black, just like the old ones. I've spent plenty of time tuning carb'ed motors, enough to know when something is running plenty rich. Rich enough to be a problem? Maybe not, but then I'm not really sure what she's doing at highway speed.

 

The injectors are different colors from year to year? Is it the entire injector to just the colored band?

 

If it is rich from just an injector change, then they may be a larger lb/hr and when the PCM is set for the stock lb/hr, the injector pulse will inject more fuel than the stock injector and will cause a over rich condition, but it is usually enough to throw codes on these tight tolerance PCM tables used today.
I will try to see if I can contact numberdummy to see if he can give a correct answer on the part numbers.

 

The OP has listed the ID engineering prefix & suffix (9C2E-A5A) (7C3E-AB) found on the parts themselves. These are not Ford part number prefixes & suffixes.

Since I have no Master Cross Reference Catalog after 2001, there's nothing I can do...sorry.

If the actual Ford part numbers were listed, I could find the applications by using the Ford Dealer Part Locator System and/or PartsGuyEd's website.

 

This is one of the original injectors. Can anyone tell me which one is the part number?

 

There are no Ford part numbers marked on any parts after 1956. Just ID engineering or casting numbers...when applicable.

Here is an example of an ID engineering number prefix 7C3E and suffix AB

Since I have no Ford parts catalogs after 2001, there is nothing I can do.

The only way you're going to get the actual Ford part number from this prefix/suffix, is from a FoMoCo dealer.

 

Thanks for the effort. I have a friend at a dealer. I'm pretty sure i can get my answer there. I'll post it when I find out. Maybe I can save someone else the trouble.