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Author
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Topic: GLOWING HEADERS !!! any ideas???
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95 GT
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Member # 9673
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posted
 
 
ok thanks. it didnt say anything about reseting the computer or disconecting the tps while i make the adjustment for idle. but im going to buy a new tps and iac today and i was going to grab plugs while i was there. and i already have guages for the fuel line and to check the vacuum. so im going to check those today too, can you tell me the procedure for checking if the pressure on the fuel line is good. i know that i need to plug the setup into the shrader valve but i dont know how to check if its holding or what the pressure should be. thanks mack
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1995 Mustang GT
Stock!!! H E L P !!!
Posts: 144 | From: Elk Grove | Registered: Dec 2009
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MACK.GT
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Member # 10461
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posted
Ok, first you got to relieve the fuel pressure before you can hook up the gauge, do this by going to the trunk driver side ,near the tailight, locate the inertia switch, disconnect it. Then get in the car and crank the engine for around 5 seconds. It won't start of course, but the system is now relieved of pressure, now hook up the fuel pressure gauge at the shrader valve on the fuel line. Go back to trunk, and reconnect the inertia switch. Start the car. Read pressure note it. Disconnect the vacuum hose from top of fuel pressure regulator, note pressure. Turn off engine , watch the pressure, with your stock regulator the line pressure should hold steady for at least a couple min before it very slowly begins to drop. Smell vacuum hose that goes to fuel pressure reg,, if it smells of gas the unit is through. At idle the pressure should read around 35-37, and with the vacuum line removed it should go up around 5 psi. Those specs are not exact but close, id have to crack open the book to see the exact fuel pressure spec. Id say though if your fuel pressure is leaking down after shut off, its the regulator, if the pressure is low at idle, then then fuel pump is on its way out.
Posts: 446 | From: 510 | Registered: Nov 2010
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95 GT
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Member # 9673
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posted
jsut replaced the tps...no help. still idling super high... maybe iac next...?
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1995 Mustang GT
Stock!!! H E L P !!!
Posts: 144 | From: Elk Grove | Registered: Dec 2009
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Greasy
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Member # 5258
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posted
What's your TPS voltage at?
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'93 Cobra-Coyote Powered
'03 DSG Cobra
'13 Dodge Cummins
'14 Rubicon X
Posts: 3272 | From: North Dallas | Registered: Jan 2005
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95 GT
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Member # 9673
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posted
it was about .75 at idle and i think 4.75 something a full throttle. im going to buy the IAC now...but if thats not it does anyone have a mass airflow sensor i can buy??
[ December 21, 2012, 10:25 PM: Message edited by: 95 GT ]
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1995 Mustang GT
Stock!!! H E L P !!!
Posts: 144 | From: Elk Grove | Registered: Dec 2009
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MACK.GT
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Member # 10461
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posted
The new plugs didn't help? What fuel pressure did you get?
Posts: 446 | From: 510 | Registered: Nov 2010
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95 GT
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Member # 9673
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posted
Put new iac in and pulled apart the mass air flow sensor. i found a nice piece of dirt on one of the probes. and now im idling nice and pretty, and my headers are nice and normal. THANK GOD! finally finished. running beautifully now. perfedt idle and amazingly responsive again!! So i dont know if it was the iac or the piece of dirt that was the issue, but its fixed. id put my money on the mass air flow sensor tho. thanks mack and all the dudes on here that took the time to help me out and give advice. now if i can only pass smog tomorrow...LOL
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1995 Mustang GT
Stock!!! H E L P !!!
Posts: 144 | From: Elk Grove | Registered: Dec 2009
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OneFastHatch.
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Member # 9537
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posted
![[patriot]](graemlins/patriot.gif)
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1991 fobra (slow)
Posts: 2139 | From: bay area | Registered: Oct 2009
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Flatline
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Member # 12081
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posted
Fuck yeah! Great to hear man. I was bummed with all the problems you went through. Glad it's all workin out for you now!
Posts: 235 | Registered: Jun 2012
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coupe5oh
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Member # 10411
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posted
Awesome..hopefully you dont make a thread 2morro with the title "why wont my car pass smog"
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R.I.P Willie Guzman (5ltrsvt)
96 4.6- H/C/I 5.3 LS swap
95 5.0- SOLD
94 5.0- SOLD
Posts: 2288 | From: Hayward | Registered: Oct 2010
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OneFastHatch.
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Member # 9537
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posted
quote:
Originally posted by coupe5oh:
Awesome..hopefully you dont make a thread 2morro with the title "why wont my car pass smog"
Lolololllloollollolllll
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1991 fobra (slow)
Posts: 2139 | From: bay area | Registered: Oct 2009
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