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Thread: EGR Blank causing limp mode

  1. #1
    Beginner Ozmerican's Avatar
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    EGR Blank causing limp mode

    I've been trying to search the forum with no luck to see if anyone else had this issue.

    I recently installed a dawes valve kit, erg blank and 3" exhaust. When driving at highway speeds with a steady pedal the Patrol would go into a "temp" limp mode. After coming off the pedal for a sec and back on it would go just fine. Through investigating I noted the boost would come up to quickly for the Dawes kit compensate but it would still occur. It was only after removing the blanking plate would the valve kit work correctly.

    The blanking plate that I purchased did not have the hole as I had seen in others, but based on the position the instructions indicated for it install it didn't cause the dummy light to come on, so thought all is good.

    Any ideas as to what is causing this? I currently to not have blanking plate in and would like to put it back. Should I put a hole in it to allow some recirculation?

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    Dribble Master Clunk's Avatar
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    Bump...........


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    Patrol Freak Bigcol's Avatar
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    sorry Ozmerican...... as you know, mines a 4.2
    so I wouldn't know shyte from clay with a 3.0.......

    hopefully someone like Nizzbits can help? maybe....?
    Tidy Whitey - 99 GU TD42Ti - Diesel Gas, (GUIV Turbo & Intercooler 8Lb boost), 33" Micky T's Baja MTZ's, Dual Batt's, Cargo Barrier, rear draws, HID Super Oscars, winch, Grinch & witch attached and more goodies to come

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    Hardcore macca86's Avatar
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    I've heard if it's a crd zd30 you need the hole drilled in or a scan guage to stop limp modes
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    Patrol God Sir Roofy's Avatar
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    Try backing the dawes off a bit at a time sounds like your a tad of the sweet spot

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    Dr Gary (23rd February 2015)

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    Patrol God threedogs's Avatar
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    Whats your max boost reaching ?
    DO what I did and put a permanent texta mark on the dawes.
    Grab a pad and pen, adjust your boost,noting what you did.
    If its hitting 15PSI if thats your max quickly,,,,, open the needle 1/2 a turn writing it down.
    Takes a little while but you'll get there, grab two spanners and go for a drive
    Last edited by threedogs; 25th November 2014 at 11:14 AM.
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    I am he, fear me the evil twin's Avatar
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    Quote Originally Posted by macca86 View Post
    I've heard if it's a crd zd30 you need the hole drilled in or a scan guage to stop limp modes
    Nah, blanking plate EGR codes on the CRD's only set the check engine light.
    They won't cause limp mode so drilling the hole or clearing the fault is only to stop the check engine light.


    As posted by Roofy I think the problem is the Dawes and Needle needs tweaking.
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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    Patrol God threedogs's Avatar
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    Do you have gauges fitted???
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Patrol Freak kevin07's Avatar
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    Quote Originally Posted by the evil twin View Post
    Nah, blanking plate EGR codes on the CRD's only set the check engine light.
    They won't cause limp mode so drilling the hole or clearing the fault is only to stop the check engine light.


    As posted by Roofy I think the problem is the Dawes and Needle needs tweaking.
    there is no mention of a needle valve so if there isnt one you need one to adjust up the spool rate so pm mudski for that or the evil twin has a different way to adjust the turbo actuator so ask him for his knowledge on the subject
    07 crd,,bridgestone 697lt, 2.75 buedesert ex, SOLD theres a lot of my blood, sweat and money in that troll.


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  14. #10
    The master farter
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    No mention of what his max boost is too. Need to know this before you do anything. But my guess is a needle valve would be handing here to help drop the cruising boost pressures. Not only does the needle valve adjust spool up rate, it in turns increases or decreases your cruising boost pressure.

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