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2007 f150
02-22-2014, 07:16 PM
Post: #1
2007 f150
code PO453 CHANGE FUEL PUMP SENSOR NOW SAYS HIGH VOLTAGE ANY SUGESTION
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02-23-2014, 12:39 AM (This post was last modified: 02-23-2014 12:40 AM by Rupe.)
Post: #2
RE: 2007 f150
P0453 = FTP = Fuel Tank Pressure (not fuel pump pressure) which means the computer is unhappy with the EVAP system pressure being high so check the EVAP canister purge valve & hoses for kinks or obstruction. Could also be a bad gas cap if you have noticed excessive pressure when you open it.

Searching the web I also see people reporting pinched wires after changing a fuel pump and others state issues with the PCM going bad. Personally I would hunt down pinched wires and vac lines seeing as you just repaired things. I would also clear the codes and see what comes back because this may be just a fluke due to the recent work.

Let us know what you find and we can talk more.
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02-24-2014, 07:06 AM
Post: #3
Smile RE: 2007 f150
Smile
(02-23-2014 12:39 AM)Rupe Wrote:  P0453 = FTP = Fuel Tank Pressure (not fuel pump pressure) which means the computer is unhappy with the EVAP system pressure being high so check the EVAP canister purge valve & hoses for kinks or obstruction. Could also be a bad gas cap if you have noticed excessive pressure when you open it.

Searching the web I also see people reporting pinched wires after changing a fuel pump and others state issues with the PCM going bad. Personally I would hunt down pinched wires and vac lines seeing as you just repaired things. I would also clear the codes and see what comes back because this may be just a fluke due to the recent work.

Let us know what you find and we can talk more.

ty very much so far so good line was bent reset code and off it is so far have to drive 50 miles to reset comp so hope it stays off
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02-24-2014, 11:09 AM
Post: #4
RE: 2007 f150
Glad to hear the follow up as it may help someone else reading here.

Can you drop us another note in a week or two? I'd be curious as this sort of thing usually takes many drive cycles to prove itself.
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