P0453 OBDII Help
Thread Starter
|
Junior User
Joined: Sep 2008
Posts: 57
Likes: 0
P0453 OBDII Help
Where are all the good mechanics on Long Island? I'm getting a P0453 OBD code. I know what it is just don't have the time to mess with it. I brought the truck into a local shop here to have that fixed along with getting a NYS Inspection. Well, some new ball joints and a $450 bill and CEL is still on and no inspection. He reset the computer and said to drive it for a while and bring it back. The light came back on (no surprise there) and I need to get this thing inspected. Is there any way to trick the computer to clear the code long enough to pass the inspection? Maybe put a resistor some where or anything? I plan on fixing the problem but I need to get the inspection done asap. This is the second shop that seems like they don't want to have anything to do with fixing this problem.
Thanks in advance for any help.
Thanks in advance for any help.
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Diagnostic Trouble Code (DTC) P0453 indicates that Self-Test has detected a fuel tank pressure sensor (FTP) circuit input above the maximum limit.
Possible causes:
- FTP open.
- FTP short to VREF or VPWR.
- VREF shorted to VPWR.
- SIG RTN open.
- Damaged FTP sensor.
- Damaged PCM.
The FTP is located on top of the fuel tank. To replace it, the the Ford Manual states as follows:
1. Remove the fuel tank.
CAUTION: The fuel tank pressure sensor must be disengaged from the fuel tank before it can be removed. Failure to do so can cause damage to the fuel tank pressure sensor or the fuel tank.
2. Remove the fuel tank pressure sensor.
- Disconnect the electrical connector.
- Press down and rotate the fuel tank pressure sensor counterclockwise and remove it from the fuel tank.
Installation is the reverse of the removal procedure.
Possible causes:
- FTP open.
- FTP short to VREF or VPWR.
- VREF shorted to VPWR.
- SIG RTN open.
- Damaged FTP sensor.
- Damaged PCM.
The FTP is located on top of the fuel tank. To replace it, the the Ford Manual states as follows:
1. Remove the fuel tank.
CAUTION: The fuel tank pressure sensor must be disengaged from the fuel tank before it can be removed. Failure to do so can cause damage to the fuel tank pressure sensor or the fuel tank.
2. Remove the fuel tank pressure sensor.
- Disconnect the electrical connector.
- Press down and rotate the fuel tank pressure sensor counterclockwise and remove it from the fuel tank.
Installation is the reverse of the removal procedure.
Thread Starter
|
Junior User
Joined: Sep 2008
Posts: 57
Likes: 0
Thanks for the info guys. Follow up question, are there test points located some where to check the possible causes in Rockledge's reply or am I going to have to scour the truck? If there are test points where would they be located? Thanks again.
Thread
Thread Starter
Forum
Replies
Last Post
vtgboss
1997 - 2006 Expedition & Navigator
14
Aug 29, 2014 07:46 AM
