Error code p0449

why assume it has one./?
no problem stated just how to shop.
the dealer has the part. if it has one at all.
2.4 flex or not. flex fuel.???? /can not guess real engines. there.
turbo? and more engine can be many options,
why not post the VIN # so we can know what is really under the hood. just put XXXX's a the end to hide the serial.
the VIN has a real chevy engine code as does the BODY RPO codes called engine codes.
the petrol version of car (gasoline only) has GAS tank pressure sensor is and NOT fuel pressure at all.
the tank sensor up top is for EVAP testing USA EPA laws.
it can tell you gas cap is loose , and common. and only cap is wrong. 99% of time. new cap fixes it.

THAT?
is there a scan tool error DTC ? you leave out DTC errors in post so answers will be dead wrong?
the petrol engine has fuel pressure sensor in the FUEL pump
and not sold separate.
or click find part by VIN
I have no answers on the FLEX engine ever.

https://www.chevroletonlineparts.com/


have at it.

2002 Chevy Tahoe + P0171/P0174 - Chevrolet Forum - Chevy ...

chevroletforum.com > ... > General Discussion Forums > General Tech
Jul 8, 2007 - I have cleaned the MAF sensor, changed the fuel filter, ... I also have a 2002 Tahoe that is posting the p171 and P174 codes and .... I have a 2000 ChevyTahoe with a 5.3L V8. ... That seems normal for the light to go off after running, the IAC motor should have its own fault code, so it may not be that, but not ...Missing: flex

SilveradoSierra.com • P 171, P 174 error code : Vortec 5300 ...

Chevy 5.3 liter lifter noise and motor flush solution How to ...? 14:10https://www.youtube.com/watch?v=4RecrxxLT4sAug 29, 2011 - Uploaded by briansmobile1Chevy 5.3 liter lifter noise and motor flush solution How to .... was there an issue with the oil pressure gauge on the dash? my '04tahoe with the 5.3 when it's .... 2004 chevy suburban1500 5.3Lflex fuel - I followed this but still have the ticking. .... How to jack up your car without jacking up your car - Duration: ...Truck Jerking/Studdering Around 45-50 mph - Ford Truck Enthusiasts ...www.ford-trucks.com > ... > 1997 - 2003 F150Dec 6, 2010 - Right around 45-50 mph, my truck starts to jerk or studder as I attempt to .... the EGR system operation causes very lean air/fuel ratios that requires higher coil voltage to fire. .... 06 f150 5.4 jerking at 45-50, trucks12345, 2004 - 2008 F150, 6 ...1966 - 1977 Early Broncos, Ford Vans and other vehicles, 2014+ ...

Sounds like the fuel composition sensor is bad causing it to run rich .. Is your Tahoe a flex fuel ?

If your Tahoe is the 5.3 Non flex fuel then its in the gas tank then you dont replace it.
It's supposed to last the life of the Tahoe.
If your Tahoe is the 5.3 flex then the fuel filter is located on the under carriage of the frame and should be replaced every 15,000 miles.

P0232....Fuel Pump Secondary Circuit High

pointaengineer.com check out and your welcomed:-)

no usually a hard start in the morning is a sign of a fuel pump draining back after sitting, a sign of fuel pump going out usually..

this is a comon problem on chevy 00-06 models a computer ground ,it seems ok at sight but inside it's just holding a few wires ,get under the car on the driver side passenger there you should find a two ground wire goin to the block a big, and a small ,the small one gets coroded try to fix it and let me know how it goes ok.

you shoul replace all 4 then remove batt cables hold together 10 sec reinstall cables

dear sir, should be on trans crossmember on drivers side look at fuel lines the sensor has fuel that goes thue it and one wire connector with four wires in it .....good luck