Good day gurus in the house. I have an rx 300 lexus cuv and my cel light comes on and goes off periodically. I have scanned and detected the famous P0171 code. I have checked for leaks, cleaned my maf and checked my o2 sensors and everything is working fine. It begun when I bought a new fuel tank and told my mecho to service my injectors. Kindly give suggestions as to helping me. Cos I really hate the sight of my cel every time I drive the car.

Thanks

Devirus2:
Good day gurus in the house. I have an rx 300 lexus cuv and my cel light comes on and goes off periodically. I have scanned and detected the famous P0171 code. I have checked for leaks, cleaned my maf and checked my o2 sensors and everything is working fine. It begun when I bought a new fuel tank and told my mecho to service my injectors. Kindly give suggestions as to helping me. Cos I really hate the sight of my cel every time I drive the car.

Thanks

https://www.youtube.com/watch?v=gCV11HGqRaI

Devirus2:
Good day gurus in the house. I have an rx 300 lexus cuv and my cel light comes on and goes off periodically. I have scanned and detected the famous P0171 code. I have checked for leaks , cleaned my maf and checked my o2 sensors and everything is working fine. It begun when I bought a new fuel tank and told my mecho to service my injectors. Kindly give suggestions as to helping me. Cos I really hate the sight of my cel every time I drive the car.

Thanks

How did you do the bolded?

You have a vacuum leak, or possibly a faulty bank1 oxygen sensor. Do a live scan and check values from o2 sensors and post here.

GAZZUZZ:


How did you do the bolded?

You have a vacuum leak, or possibly a faulty bank1 oxygen sensor. Do a live scan and check values from o2 sensors and post here.

And what values should he be looking out for

chillex8:


And what values should he be looking out for

The type that cause recurrent epileptic seizures in hyundais

chillex8:


And what values should he be looking out for

GAZZUZZ:


The type that cause recurrent epileptic seizures in hyundais

Abeg, how una dey?

@ op go do a complete tune up which involves changing of spark plugs, servicing of injector noozles, checking of fuel pump pressure and servicing of inlet manifold.

DECOtech:







Abeg, how una dey?

Pardon

Do I know you

mayor2013:
@ op go do a complete tune up which involves changing of spark plugs, servicing of injector noozles, checking of fuel pump pressure and servicing of inlet manifold.

Holy Moses

Dislowman Is this you?

Ok bosses, i'll just do that. Hope it helps, cos before I did a fuel tank change and serviced my injector nozzles, all was very fine. Thanks all the same, i'll update

How do you service inlet manifold?

Devirus2:
Good day gurus in the house. I have an rx 300 lexus cuv and my cel light comes on and goes off periodically. I have scanned and detected the famous P0171 code. I have checked for leaks, cleaned my maf and checked my o2 sensors and everything is working fine. It begun when I bought a new fuel tank and told my mecho to service my injectors. Kindly give suggestions as to helping me. Cos I really hate the sight of my cel every time I drive the car.

Thanks

All you need is a live scan.

Maf readings @ idle= 0.4lib/min. Should not go lower than this.

O2 sensors readings= 0.1v-0.9v.

Lastly, have you checked your positive crankcase ventilation valve and hose Start with that.

You should be checking for blockage and stiffness.

Normally, you should hear it flicker when you shake.


I will assume there is no vacuum leak.

chillex8:
Do I know you

No you don't.

I don't expect you to

GAZZUZZ:
How do you service inlet manifold?

By simply removing carbon deposits in it. Shikenah