How to test fuel pressure?

grant66 · 08-08-2002, 03:46 AM

Do I put the fuel pressure guage on the valve which is on the fuel rail or the fuel pressure regulator. Do I need a code scanner for the KOEO Codes or will my Walmart code scanner work that has a blinking light. I also have a real crazy question, because these mechanics say that there is some thing in the wiring system that tells what gear the car is in. I say that is only in the AOD because the transmission has a sensor on the speedometer. Thanks for the help.

PKRWUD · 08-08-2002, 03:59 AM

The fuel pressure gauge is attached to the schrader valve, which is on the fuel rail, right behind the distributor.

Your Wal Mart scanner should work fine.

Take care,
~Chris

grant66 · 08-09-2002, 11:20 AM

So I just ran a code scanner and a fuel pressure test. Engine light was not on but the scanner came up with 029 & 066. I haven't checked my material to reference the codes. Just wanting to get the ball rolling. I hooked up the fuel pressure test and it was 220 psi. I was not able hook it up when my car was having problems. But it seems to be enought pressure. Any input would be much appreciated.

grant66 · 08-09-2002, 12:01 PM

I believe my fuel pressure was 220 KPA instead of PSI. One of the mechanics that helped me said that it was plenty of fuel pressure for a GM.

PKRWUD · 08-09-2002, 08:11 PM

Quote:

Originally posted by grant66
One of the mechanics that helped me said that it was plenty of fuel pressure for a GM.

GM??? What year/make/model are we talking about?

grant66 · 08-09-2002, 08:34 PM

I was ackowledging General Motors in general because the mechanic that helped me hook up the fuel pressure gauge only works on GM trucks and deisel powered snow cats.

PKRWUD · 08-09-2002, 08:53 PM

Oh, okay. Check your other thread.

Take care,
~Chris

08-08-2002, 03:46 AM	#1
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	How to test fuel pressure? Do I put the fuel pressure guage on the valve which is on the fuel rail or the fuel pressure regulator. Do I need a code scanner for the KOEO Codes or will my Walmart code scanner work that has a blinking light. I also have a real crazy question, because these mechanics say that there is some thing in the wiring system that tells what gear the car is in. I say that is only in the AOD because the transmission has a sensor on the speedometer. Thanks for the help. __________________ If it isn't broke you are not trying.

08-08-2002, 03:59 AM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	The fuel pressure gauge is attached to the schrader valve, which is on the fuel rail, right behind the distributor. Your Wal Mart scanner should work fine. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

08-09-2002, 11:20 AM	#3
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	KOEO and Fuel pressure results So I just ran a code scanner and a fuel pressure test. Engine light was not on but the scanner came up with 029 & 066. I haven't checked my material to reference the codes. Just wanting to get the ball rolling. I hooked up the fuel pressure test and it was 220 psi. I was not able hook it up when my car was having problems. But it seems to be enought pressure. Any input would be much appreciated. __________________ If it isn't broke you are not trying.

08-09-2002, 12:01 PM	#4
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	Mistake on last log in I believe my fuel pressure was 220 KPA instead of PSI. One of the mechanics that helped me said that it was plenty of fuel pressure for a GM. __________________ If it isn't broke you are not trying.

08-09-2002, 08:34 PM	#6
grant66 Registered Member Join Date: Sep 2001 Location: Avon, CO, USA Posts: 63	I didn't explain my self. I was ackowledging General Motors in general because the mechanic that helped me hook up the fuel pressure gauge only works on GM trucks and deisel powered snow cats. __________________ If it isn't broke you are not trying.

08-09-2002, 08:53 PM	#7
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Oh, okay. Check your other thread. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

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