What's the deal with USDM 550's?

[OneJoeZee]

okEdokE, I did some googling on DIY injector cleaning . . . no such thing. Shops like RC or wherever use a chemical solution with ultrasonic whatever. The ultrasonic junk does most of the cleaning. I have seen this on MonsterGarage or something .. . cept it was for tools.

So I am concluding that injector shops are seriously over charging for cleaning injectors. .. RC wants $25 per injector and add 4.50 per for my side feeding injectors . . . total $171 for them to stick 6 injectors into the same blinkin chem bath for an hour may be less. Um no!!!!

For the love of potatoes or whatever does anyone know of a decent DIY trick?

Just send them out. Even if you used a self cleaning method, how would you check your work to insure they flowed full and true?

The best part about cleaning, other than the cleaning itself, is getting the sheet back with the flow rate of each injector before and after.

 

[A-to-the-J]

IDK about that. Jose and I have flow tested and cleaned 440s in our cars and they came back 450s.

yessir. i still have the sheet on them when Jose sent them out to get balanced and flow tested, but I'm on a 7M.