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02-07-2014, 08:55 AM | #1 | |
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Fuel Pressure Sensor 1999 Mystique
I have diagnosed my issue to the Fuel Rail Pressure Sensor. It appears the diaphragm is blown. I can get the car to run fine by plugging the vacuum hose nipple and disconnecting the wiring but now the check engine light is on. I have tried Ford and every other parts house I can think of and I am unable to find a replacement Fuel Pressure Sensor. Ford says its a discontinued part.
Anybody have a source for a Fuel Pressure Sensor or a work around for the check engine light? Thanks 1999 Mercury Mystique V6-2540 2.5L DOHC FuelPressureSensor.jpg Last edited by lionheartsails; 02-08-2014 at 09:31 PM. Reason: image |
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02-09-2014, 06:11 AM | #2 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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The Following User Says Thank You to rhandwor For This Useful Post: |
lionheartsails (02-09-2014)
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02-09-2014, 08:32 AM | #3 | |
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Re: Fuel Pressure Sensor 1999 Mystique
rhandwor,
Thanks. I saw this. I called them and they don't have any in stock. I have found it listed on several websites but nobody has it in stock. At this point I think I'm going to have to find a work around and/or try to get a waiver for the State Inspection. |
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02-09-2014, 10:08 AM | #4 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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02-09-2014, 12:08 PM | #5 | |
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Re: Fuel Pressure Sensor 1999 Mystique
Google Duralast SU13803 The Airtex unit sold.
Wells SU13803 |
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02-17-2014, 07:52 PM | #6 | |
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Re: Fuel Pressure Sensor 1999 Mystique
II Found One:
XS4Z9F972DA Ford Sensor - Fuel Injector Pressure on ebay from ford-parts-depot It appears to be working but have only put 5 miles. One thing that has happened which I don't think is related but began the first time I started the car after replacing is the following electrical do not work: Radio Key-less entry remote Side mirror remote Interior light The sensor that prevents you from removing the ignition key unless in park These are the things I have found so far. |
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02-18-2014, 05:41 AM | #7 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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Check all fuses for these items. Was everything shut down before plugging in new sensor? |
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02-19-2014, 11:33 AM | #8 | |
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Re: Fuel Pressure Sensor 1999 Mystique
No codes are coming up. The car was off but the battery was not disconnected. All fuses have been checked and are ok.
I'm wondering if it the diode in the fude block. (reverse voltage protection). It appears that most everything on the bottom row of the fuse block under the dash is affected. |
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02-19-2014, 11:59 AM | #9 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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Use a test light or DVOM and check voltages on both sides of the fuses. Their is an opening on top where the probe will hit both sides of the fuses. |
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04-17-2014, 10:54 AM | #10 | |
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Re: Fuel Pressure Sensor 1999 Mystique
I have have physically check all the fuses with a meter in the Power Distribution Box (under hood) and Passenger Compartment Fuse Panel.
Fuses 29, 31, 33, & 35 have no power on the (+) side of the fuse block (lower bank of passenger compartment fuse panel. |
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04-17-2014, 05:43 PM | #11 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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Newer Ford's have fuseable links in the electrical panel under hood. Ford's have the amp rating on top and look like a big fuse. |
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04-18-2014, 12:47 PM | #12 | |
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Re: Fuel Pressure Sensor 1999 Mystique
I have check the Fusible links in the Distribution Block under the hood with a meter. I checked the wiring on the back of the distribution block for loose / burned wiring. The insulation on all the wiring around the distribution block and around / under the battery appear to be in good condition.
All fuses in both fuse boxes and both Diodes check out OK. No Codes are registering. Next step, I guess, is to find a wiring diagram of the cabin fuse block? Still puzzled why Fuses 29, 31, 33, & 35 have no power on the (+) side of the fuse block (lower bank of passenger compartment fuse panel). Beside the above listed electrical issues, I also noticed the PAT light in the center of the dash no longer flashes like it did before theses issues arose. |
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04-18-2014, 01:07 PM | #13 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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04-18-2014, 03:12 PM | #14 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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Grey/White: Start Black: n/a Black/Blue: n/a Yellow: ACC - On Orange: + n/a Red/Black: Key - ACC - On - Start Green: On - Start |
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04-19-2014, 06:53 AM | #15 | ||
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Re: Fuel Pressure Sensor 1999 Mystique
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