Injector pressures

[shaun ellis]

Hi does any one now how to find the right pressures for a 2 litre d4d engine  

Thanks 

[Brave27]

They are almost infinitely variable depending on engine speed/load. You require specialist equipment to test them and the pressures they operate at will cause you serious injury, or death, if you come into contact with them. Please don't try and run the system with anything disconnected or exposed. It is designed to shut itself down if it detects the system is "open", to prevent serious injury, but for the cost of having them properly tested at a diesel centre don't take the risk.

[shaun ellis]

I have the equipment to test though the ecu just need the pressure 

[Brave27]

On ‎24‎/‎04‎/‎2018 at 12:42 PM, shaun ellis said:

I have the equipment to test though the ecu just need the pressure 

Shaun, trust me, you do not.

You can possibly see rail pressure and quantity comparison in live data, but what you absolutely cannot do with a diagnostic tester is check the injectors.  How do I know, I run one of the 5 approved Denso diesel centre's in the UK. The equipment we use runs into the £100K's, if we could test the injectors without spending that money, we would have done, but you can't.  There is equipment available which will tell you if an injectors is no good, as in return fuel too high, solenoid OC/SC/High-Low Ohms, not injecting/low delivered fuel/too much delivered fuel etc, but these pieces of equipment will only tell you if an injector is grossly out of specification. In other words, just because it has not been identified as "faulty" on something like a Hartridge IFT70 or IFR50, doesn't mean to say it doesn't have fuelling problems that will cause running issues. There is only one way of testing them properly and that is to remove them and take them to a diesel specialist, in this instance preferably a Denso approved one as the system in your Rav is a Denso system.