Question about 1999 Oldsmobile Bravada
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: 97 civic LX P0453 - EVAP
You have a fuel presure sensor or vacuum problem.
Check Gas cap as well.
You will need a multimeter for some tests.
Regards, Lee Davidian
A Four Thumbs up ^^^^ is appreciated for answering yourquestion. And please take the time to rate me by leaving a testimony. Thank you , Lee Davidian
Posted on Oct 10, 2010
yes the pressure sensor in mounted in a rubber grommet on the top of the fuel tank. it could be the sensor but the only way to know for sure is have the dealer do a evaporative emissions fuel tank pressure test, they have the special tools to do this, outside shops do not. Have u tried a new gas cap, they can leak and cause the problem, in fact that is very common.
Posted on Mar 07, 2009
Check the fuel pressure regulator on the fuel rail.It has a vacuum line going into it.Remove the line and if fuel comes out the regulator is bad.Replace it.This will cause a hard start when warm.The pressure sensor for the Evap.system is on top of the fuel tank.The po171 could be the fuel filter or o2 sensor.You need a scan tool to monitor the o2 readings to see if they are working properly.
Posted on Dec 01, 2009
P0452 Evap.Emission System-Pressure Sensor Low Input
The evaporative emission control system prevents hydrocarbon vapors from escaping from the fuel tank into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Fuel Tank Pressure Sensor (FTPS) is an integral part of the evaporative monitoring system. The PCM monitors the FTPS signal to detect vacuum decay and excess vacuum. The FTPS measures the difference between the air pressure inside the fuel tank and outside air pressure to check the purge control solenoid valve operation and for leak detection in the evaporative emission control system by monitoring pressure and vacuum levels in the fuel tank during the purge control solenoid valve operating cycles.
Posted on Feb 12, 2010
EVAP fuel tank pressure sensor low output. It sounds like the charcoal -filled canister, it's near the gas tank in a cylinder shape.The canister may have cracks or a hose is leaking around the area and it will give a fault code of PO452. Are you smelling any odors or emission smell from the car?
Posted on Feb 26, 2010
Tips for a great answer:
Aug 09, 2017 | Cars & Trucks
Sep 04, 2015 | GMC Sonoma Cars & Trucks
Oct 16, 2014 | 1998 GMC Jimmy
Oct 09, 2012 | Kia Cars & Trucks
Sep 10, 2012 | 2005 Mercedes-Benz C-Class
Sep 18, 2011 | Pontiac Firebird Cars & Trucks
Jun 02, 2011 | Oldsmobile Alero Cars & Trucks
Aug 13, 2010 | Isuzu Rodeo Cars & Trucks
Feb 26, 2010 | 2002 Ford Expedition
Feb 12, 2010 | Hyundai Motor 2003 Elantra
257 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: