Threw a code, P0190

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FalconGuy016

New Member

Oct 26, 2004

437

1

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Northern VA

Feb 23, 2006

#1

• Feb 23, 2006

• #1

I threw a code and read it today as "P0190", fuel rail pressure sensor malfunction.

I disconnected and reconnected what I thought was the fuel rail pressure sensor and erased the code. It didn't come back, yet, but has anybody heard of this? I'd rather not take it to the dealer if I don't need to.

 

imblown-ru

New Member

Dec 6, 2005

247

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0

Roanoke VA

Feb 23, 2006

#2

• Feb 23, 2006

• #2

haha...man i just went threw hell with this code 2 days ago. Apparently they go bad every now and then, so we replaced it, and the code didnt come back but it wouldnt idle, it was running real lean. to make a long story short we wound up dropping the fuel tank and replacing a rubber o ring in the fuel pump can. It had a piece broken off of it, and was losing major fuel pressure. so anyways if your car is running ****ty, you may dropping the tank and seeing if a line is kinked, or you can pull your fuel filter and blow through it to see if its clogged. hope this helps.

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

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89

the people's republic of massachusetts

Feb 23, 2006

#3

• Feb 23, 2006

• #3

i have only seen a couple of those sensors go bad. and both of those was a focus not a mustang. is your car running ok?

 

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FalconGuy016

New Member

Oct 26, 2004

437

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Northern VA

Feb 24, 2006

#4

• Feb 24, 2006

• #4

I *think* it is running slower than usual, but it's nothing I can confirm. Would it be running noticably crappy, most likely?

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

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the people's republic of massachusetts

Feb 24, 2006

#5

• Feb 24, 2006

• #5

do you have access to a fuel presure guage?

 

F

FalconGuy016

New Member

Oct 26, 2004

437

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Northern VA

Feb 24, 2006

#6

• Feb 24, 2006

• #6

svttech76 said:

do you have access to a fuel presure guage?

Click to expand...

I don't think so, at least, not in my immediate area. Should this be my focus?

Edit: Googling shows me it seems to be a pretty simple thing to make, given the guage itself isn't that expensive. What should my fuel pressure be?

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

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89

the people's republic of massachusetts

Feb 24, 2006

#7

• Feb 24, 2006

• #7

well the pressure varies depending on driving conditions. with the key on engine off it should be at 50 psi will probally idle somewhere in the mid 40's