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Thread: idle problem VT VX SUPER6 L67 motor

  1. #1
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    Genuine HDT VN AERO no 20 of 78

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    Default idle problem VT VX SUPER6 L67 motor

    i Have replaced the plugs also done the coils leads and usen premo still it runs good when driven but when idle its rough as please help

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    what plugs did you use? i just recently changed my leads and plugs(autolite plugs-gapped 1m) and noticed it would miss under load at low rpms, I had to take the plugs out and re-do the gap to 1.14 as the supercharged model requires a minimal gap.hope this helps... Also throw some fuel injector cleaner through aswell.
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    Try injector cleaner first then and see how it goes.That will ged rid of any crap causing the injectors not to work properly.If you still get the problem after running that through the tank give us a holla and well go from there.Have you always run premium on ur SC6?
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    ow yeah always mate still runs heavey on fuel i noticed 2day after i did a run in it one injestor was sitting fuel out it was a clip on the top lose cliped bk in and is fine now about 3 months ago i over heated the engine and it cut out wouldnt kick over left it 4 ten then it started and had run like shit since then i sent it in to get fixt bill of a grand and sent bk twice to fix the problem and hasnt been done rite

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    97VT SS super6,daily 05 holden barina(opel)!!

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    Yeh its hard to get a decent mechanic,if your confident enough by yourself a gregory's manual for the VT about $40 best thing you'll ever get.I do most of my own work on me car apart from real big major stuff,not upto that yet lolol.I use either bp unltimate or mobil 8000 and around town i get about between 390-430 kms a tank thats running a 10psi boost on charger aswell..although if ya don't flog it lol
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    have u got a msn thing sound like u know a bit about the motor
    i will do the injectors 2morrow i got my hands on a 12psi pullie and looking at a GEN3 airflow meter as well its a ss induct one

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    Ive heard some hit n misses with the SS inductions stuff,I was going to get the SS inductions growler kit for me beast( too dear) but just did what every1 else does and made me own secondary intake pipe of the side of airbox here http://forums.justcommodores.com.au/...sion-hehe.html Cost about $100...most expensive part was silicon bend.email is kunu_1@hotmail. com
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    i havent put it on yet just want the engine to run better its played up since day 1 i added emaile too

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    yeh no point yet untill everythings sorted first as your just gunna make it worse.Np m8,you heading to the CfC this weekend?
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    i added u on msn dude accept it it bren0em@hotmail.com i live in tasmania dont know what cfc is heading to melbourn in 2 weeks tho with my vt super6 calais

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    np m8 done.....they have a CfC( cruise for charity) in melbourne in october.Search on here for Cruise for charity and theres a link,have a sus and see if you can make the melbourne one, i might be heading down for it also...this weekend we have the sydney CfC,its a great day and night.Got to head off m8 but will catch ya on soon.Give it a fair few kms for the injector cleaner to work and if you still got the problem we'll try other stuff : )
    Also check my ride,sitting on HSV R8 19's

    " And on the Seventh day ,GOD created Commodores!!!! "

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    Hey im currently having this problem too. i recently did a l38 to l67 conversion and at first i thought it was a vacuum leak but after some looking around i found it to be the injectors and to my horror injector 4 is ****ed, this was found out when the idle rpm didnt change when i disconnected the injector and lead at idle on cylinder 4 i also swapped plugs to make sure it wasnt that and yer 4 is still no workies. I just put a whole bottle of injector cleaner in it so im waiting to see if that fixes that up but ive also got an extra 36lb injector here to fix number 4.
    any supercharged 6 that lives round my area?

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    so u have a spare case my number 4 was the one spitting fuel out the other day

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    wel had a injector clean done and guess what still idlein like crap what else can i do ?

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    check for vacum leaks and get a compression test done cause if you overheated it , it could be a blown head gasket.

    Big-ev i live at deception bay not far from you at all.

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    check the O rings around your injectors, do that by squirting some water or something around the injectors and if it gets sucked up immediatly or the idle jumps around theres your problem

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    is the boost control solinoid opening the bypass on the charger at idle
    I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
    tabbacco is still my favorite vegetable

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    Quote Originally Posted by genaero20 View Post
    ow yeah always mate still runs heavey on fuel i noticed 2day after i did a run in it one injestor was sitting fuel out it was a clip on the top lose cliped bk in and is fine now about 3 months ago i over heated the engine and it cut out wouldnt kick over left it 4 ten then it started and had run like shit since then i sent it in to get fixt bill of a grand and sent bk twice to fix the problem and hasnt been done rite

    chances are its blown a headgasket or such

    get a compression test and check for combustion pressure in the radiator

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    it was done with the new radiator and heads cheacked with veley cover gaskets was done


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