Question about Mercury Cougar

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I NEED THE WIRING COLOR CODE FOR THE FUEL PUMP CONTROL MODULE FOR A 2000 COUGAR V6.,SPECIFICALLY, THE COLOR THAT CONTROLS THE PUMP (FROM THE MODULE TO THE PUMP) ., ALSO TELL ME WHAT IS THE PURPOSE OF A BLK/BL WIRE THAT COMES OUT OF THE SAME MODULE, IT SEEMS TO GO TO THE FRONT PANNEL(CLUSTER).PROBLEM IS THE PUMP WON'T PUMP. HELP., ANDY

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  • ANDRES MELERO Aug 31, 2010

    THANK YOU., I GOT POWER ON GN/OR., NOW I NEED TO KNOW WHAT WIRE GIVES POWER TO THE PUMP FROM THE MODULE.THANKS .....ANDY

  • ANDRES MELERO Sep 01, 2010

    got yu, i will do that this wknd., in the mean time,please tell me the color code for the power wires going from the fuel delivery module to the pump coil., i want to eliminate the coil as a fault., this pump has been changed twice by a mechanic over the last two months, he also changed the fuel rail pressure sensor., first problem the car would stop after an hour driving and would start again after waiting one or two min..second.problem going uphill no power,third problem now the pump won't pump.,the mechanics two could not fix the problem.. andy

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Hello! The fuel pump relay normally open contacts receives +12 volts via fuse # 9...Opposite side ...Green/Orange wire passes through the closed contacts of the Inertia Switch and supplies +12 volts to Fuel Pump Module (Green/Orange)...The Fuel Pump Relay...Green/Blue wire is provided +12 volts via the ignition switch...This wire multiples to both the EVAP Canister Vent Valve and Purge Valve...The wire that you are asking about...Black/Blue Is one of two signals from the PCM that enable the pump...It is Pin #54 on the PCM connector...The Green/Black wire is the other...From Pin # 40 (PCM)...

Sensors communicate to the PCM which enable the fuel system...#1 Manifold Absolute Pressure sensor...#2 The Throttle Positioning Sensor (TPS)...These are the two most important...There are others...If you do not have +12 volts at The Green/Orange wire with the ignition on..FP Relay is defective...No signal from PCM possible sensor fault...Let me know ....Guru......Saailer

Posted on Aug 31, 2010

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  • David Burbee
    David Burbee Aug 31, 2010

    Hello! The Fuel Pump Module contains the fuel pump...Pcm supplies ground to the fuel pump, which completes the circuit, from The Black/Blue and Green/black wires...If neither wire has a ground the Pcm isn't being told to fire the pump...I'm sending test procedures to eliminate the MAP and the TPS as a fault...I bet there isn't ground present on either of those two wires...Test them both and let me know...I'm on-line till 6PM EDT...I'll hang here and wait for you...Looking like a sensor fault...

    Saailer

  • David Burbee
    David Burbee Aug 31, 2010

    Hello! The TPS is bolted to the throttle body...It has a three wire connector...Wire colors are...White...Brown...Yellow...Using two safety pins...Push a pin into the rear of the in-place connector.into the White wire...The other into the Brown...Using a volt meter set to read 5 volts...Place the + probe on the White wire and the - probe on the Brown...Turn the key to on...Must read less than 1 volt (.85)...If not TPS is at fault...Move the White wire pin/probe to the Yellow wire...Key on...Must read +5 volts...If not TPS is defective....The V6 does not have a MAP sensor...It has a Fuel Rail Pressure sensor (FRP) ...It is bolted directly to the rail...Wire colors...White/Green...Yellow/Green...And Brown/Green...Use the same technique...Pin the white/Green and the Brown/Green... + meter to White/Green and - meter to Brown/Green...Record reading....Move + probe to Yellow/Green...Record reading....Send resulta...Saailer

  • David Burbee
    David Burbee Sep 01, 2010

    Hello! When a mechanic changes the same component twice within two months; Alarm bells go off...
    The pump wires are...White/Black...And Brown/Yellow...........The data is pointing at the PCM not firing the fuel pump due to a missing sensor input...Lose of power also (one of the original complaints) points at broken substrate on the Throttle Positioning Sensor...That sensor plays the role of Fuel Boss...
    Either the sensor is defective or a loose/broken connection to it...Take the time to eliminate the TPS...Key on... (.85) volts across the White and Brown wire...And +5 volts across the Yellow and Brown wire...And pray for me; I will soon have a hurricane in my face.............Saailer

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