i will erase the code as i have scan tool then install the new OEM part and start the car and idle it for 10 minutes and we will see what happn then thanks for the help

 

this time the code P0171 is solved after i have changed the MAF the P0171 came back i did Fuel pressure test the fuel pump and pressure was good 4.2 BAR and i did another test of smoke whith Hookah and found Fuel Injector O-Ring was leaking white smoke will replace soon and update Forum soon thanks for great help and many thanks For Doc old.

 

once and for all the P0171 solved no more codes the only thing the scanner says
No Pending codes
the last thing was O ring of fuel injector .

it runs smooth babe

 

here my rig with no OBD codes and no CEL any more

 

I've been chasing the same code for 2 years. How did you smoke test those O rings?

 

I got to learn something today, sorry about your misfortune though Alex2012.

 

RSC, do you have the same issue?

 

Nope, I got 99 problems but that aint one.

 

Lol....
Funny and cool