what is code p2190 2004 Cadillac SRX v6 3.6 ltr 2wd

Question

what is code p2190 on a 2004 Cadillac SRX v6 3.6 ltr 2wd?

Answer 1

P02190 System too rich at idle,bank 2 . Probable causes are  Fuel pressure ,Injector, air intake restriction

For this code to appear you have too much fuel at bank 2,Bank 2 is located where the number 2 cylinder is at,so lets check the probable causes,for fuel pressure to be high,you need to inspect the fuel pressure regulator, and yes the fuel pressure regulator can rupture causing fuel to enter through its vacuum hose causing high fuel pressure and fuel into the intake manifold, Another cause is  the injector not properly atomizing causing incomplete combustion to that bank,and yet another cause is the air filter,you need to inspect thatt make sure its clear and not plugged causing restriction.The MAF (mass air flow) where the air filter is at can be faulty and set this code a good known subsitute should be tried