Yes its divided into twp parts .
Not readily available in USA but in Europe there is a system that purges out the injectors.
https://www.youtube.com/watch?v=LSLb_bOkgQ4
The US businesses prefer chem purges like BG 244 & 245 etc
Now when it comes to engine internal purges of carbon then the BG system is hard to beat.
Using the their tool dispenser system (only available to the trade) using their chemical purges the magic liquid is dispensed into the engine oil , the other injected into the incoming engine air flow the 245 is put in the fuel.
Hope that answers your questions, we have both systems PLUS equipment gasoline GDi technology engines an carbon build up purges to eradicate misfiring.
Dennis
