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Thread: MAP / IAT Sensor Clean - High fuel consumption?

  1. 2nd December 2013, 07:38 AM #1
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    MAP / IAT Sensor Clean - High fuel consumption?

    Last weekend i decided to give my EGR and MAP a clean. I recently had my codes read and had a couple of EGR faults logged so I though why not give it a clean.

    OMG!

    I knew what to expect but nothing prepares you for it. It was chockas!

    Having a look at the MAP was my real concern and given its condition may account for my ever increasing fuel inefficiencies.

    Could I be correct in assuming this amount of gunk could cause this?
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  2. 2nd December 2013, 07:42 AM #2
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    Said MAP Sensor

    MAP sensor.jpg
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  3. 2nd December 2013, 07:52 AM #3
    PhilipA
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    Now that is impressive.
    Did you manage to see the tiny hole after cleaning it?
    Regards Philip A
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  4. 2nd December 2013, 09:04 AM #4
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    Yeh i gave it a good clean with contact cleaner. It looked brand new when I was finished with it.
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  5. 2nd December 2013, 05:39 PM #5
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    Quick update - not sure if its a placebo effect or coincidence, but ive noticed my very clunky gear changes have disappeared! Particularly on the down changes in 2nd and 1st slowing to a stop.

    Too early to tell if fuel consumption has deacreased but ill post results up after a few tanks.

    Happy so far.
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  6. 2nd December 2013, 11:26 PM #6
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    Well this inspired me to look at mine. I couldn't wait to get home to look at it. This is what I found! Before and after shots. Only took 10-15 mins to do!
    Dave
    ImageUploadedByAULRO1385990709.412886.jpgImageUploadedByAULRO1385990725.844824.jpgImageUploadedByAULRO1385990746.807298.jpgImageUploadedByAULRO1385990762.081638.jpg

    Dave.
    Hi.
    96 Disco 1 V8.
    99 Disco 2 TD5.
    LROCV.
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  7. 3rd December 2013, 05:41 AM #7
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    Dave, the sluge pattern with the hair shapped part was identical to mine. It must be formed that way due to the part shape and air flow patten.

    Its a job definitely worth doing considering the minimal effort required.

    BTW if you have a red disco with your rego the same as your forum name, then i often see you near Brandon park. Clean rig you have got!
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  8. 3rd December 2013, 10:21 AM #8
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    Yes Toppa, weird way it formed. My next thing I will do is the EGR but I will get my mechanic to do that at its next service. Im not quite confident to do it myself.
    Yes, thats me, I used to work opposite Brandon Park, but I'm now in Bayswater so I'm not out that way much anymore. I do try to keep it clean although it could do with some lovin' now

    Dave.
    Hi.
    96 Disco 1 V8.
    99 Disco 2 TD5.
    LROCV.
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  9. 3rd December 2013, 11:34 AM #9
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    I pulled and cleaned my EGR the other day, only hassle was getting the intercooler pipe removed/replaced but not too bad
    I haven't cleaned the sensor yet, but I cleaned the EGR valve itself and it's noticeably smoother now.
    The Phantom - Oslo Blue 2001 Td5 SE.
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    You worry me sometimes Muppet!!

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  10. 3rd December 2013, 12:11 PM #10
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    Muppet, you were my inspiration (think Bett Middler pumping out Wind beneath my wings kind of inspiration )

    My EGR was easy as the previous mechanic replaced the clic-r clamps with screw clamps ( don't tell offtrack!) The hardest part i found was getting the bolt back into the metal clamp on the exhaust return under the EGR - PITA!
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