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zukenutter
az supporter
Joined: Sun Feb 08, 2009 10:30 pm Posts: 9045 Location: Brisneyland
Vehicle: 2006 Jimny JLX
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 Posted: Tue Jan 18, 2011 3:31 am |
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Hi all, I've noticed when I'm at idle that about once every minute or so the engine has a little skip/miss, revs drop by about 50rpm but only for a split second. Also get it at low revs after coasting and then hitting the 'go' pedal again.
Any ideas?
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vermin
az supporter
Joined: Mon Nov 02, 2009 10:30 pm Posts: 1441 Location: Clarkson W.A.
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Posted: Tue Jan 18, 2011 4:03 am |
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That sometimes happens to me when my air/con is on.
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andrew88
az supporter
Joined: Fri Oct 02, 2009 11:30 pm Posts: 185 Location: south brissy
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Posted: Tue Jan 18, 2011 5:13 am |
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i get it aswell, no idea what it is though.
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BAZZOOK
Joined: Sat Mar 24, 2007 10:30 pm Posts: 1052 Location: MORNINGTON. VIC
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Posted: Tue Jan 18, 2011 5:42 am |
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plugs or the usual sensors
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Benz
Joined: Mon Oct 27, 2008 10:30 pm Posts: 1006 Location: Cervantes WA
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Posted: Tue Jan 18, 2011 6:02 am |
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i had it.
started with a misfire that would happen when under load at low rpm.
eg. turning a corner at low rpm
then began doing it at idle and the engine would hesitate if revved from idle too. eg. would miss a few beats shaking the engine around a little and then rev up.
it slowly got worse and worse.
it was getting dark one afternoon when i decided to check it. i pulled the silly little plastic cover to see the ignition coil and leads. revved the engine and noticed a blue flash... one of the coils was shorting out on the block...
then i pulled that coil off to find the lead coming from the bottom of the coil had broken off....
after finding out they cost heaps! and being a little short on cash at the time i bodged it up.
put new plugs in as my ones were worn out. and a little electrical tape and i was off again =]
but it eventually came back on my recent holiday.
much worse this time causing stalls wile doing technical slow 4wding.
was able to find a aftermarket coil when i got back and it's been fine ever since. i think the coil was for any M series engine. including a holden cruze... do Holden make any of their own cars?...
hope this helps
i'm also non vvt....
Last edited by Benz on Tue Jan 18, 2011 6:18 am, edited 3 times in total.
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BAZZOOK
Joined: Sat Mar 24, 2007 10:30 pm Posts: 1052 Location: MORNINGTON. VIC
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Posted: Tue Jan 18, 2011 6:02 am |
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paper clip in diagnostic plug
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Ben_Sierra
az supporter
Joined: Wed Sep 30, 2009 11:30 pm Posts: 4472 Location: Perth
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Posted: Tue Jan 18, 2011 6:09 am |
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AFAIK if its throwing a code, the check engine light will be on?
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steak_knife
az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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Posted: Tue Jan 18, 2011 6:30 am |
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Benz2369 wrote: i had it.
started with a misfire that would happen when under load at low rpm.
eg. turning a corner at low rpm
then began doing it at idle and the engine would hesitate if revved from idle too. eg. would miss a few beats shaking the engine around a little and then rev up.
it slowly got worse and worse.
it was getting dark one afternoon when i decided to check it. i pulled the silly little plastic cover to see the ignition coil and leads. revved the engine and noticed a blue flash... one of the coils was shorting out on the block...
then i pulled that coil off to find the lead coming from the bottom of the coil had broken off....
after finding out they cost heaps! and being a little short on cash at the time i bodged it up.
put new plugs in as my ones were worn out. and a little electrical tape and i was off again =]
but it eventually came back on my recent holiday.
much worse this time causing stalls wile doing technical slow 4wding.
was able to find a aftermarket coil when i got back and it's been fine ever since. i think the coil was for any M series engine. including a holden cruze... do Holden make any of their own cars?...
hope this helps
i'm also non vvt....
Bingo!!!!! 
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89_tintop
az supporter
Joined: Fri Aug 07, 2009 11:30 pm Posts: 3159 Location: gold coast
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Posted: Tue Jan 18, 2011 6:32 am |
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Ben_Sierra wrote: AFAIK if its throwing a code, the check engine light will be on?
not true... some codes dont throw the light but are stored in the ecu
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89_tintop
az supporter
Joined: Fri Aug 07, 2009 11:30 pm Posts: 3159 Location: gold coast
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Posted: Tue Jan 18, 2011 6:35 am |
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Ben_Sierra wrote: AFAIK if its throwing a code, the check engine light will be on?
not true... some codes dont throw the light but are stored in the ecu
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Ben_Sierra
az supporter
Joined: Wed Sep 30, 2009 11:30 pm Posts: 4472 Location: Perth
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Posted: Tue Jan 18, 2011 6:51 am |
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Ah k, fair enough then...
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steak_knife
az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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Posted: Tue Jan 18, 2011 8:25 am |
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I have seen TPS's cause a stall on take off, but mainly on the auto's, the manual's it dosen't seam to bother.
Also the EGR's can get gummy & the valve stick's open a lil bit causing a "vacuum" leak, will give a bad idle & just off idle..
But for you Mr Nutter, I would put money on it being a coil..
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I used to be indecisive,
now I'm not so sure.....
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zukenutter
az supporter
Joined: Sun Feb 08, 2009 10:30 pm Posts: 9045 Location: Brisneyland
Vehicle: 2006 Jimny JLX
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Posted: Tue Jan 18, 2011 7:59 pm |
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Thanks all, stupid coils. Will go have a look
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smiffkid
az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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Posted: Thu Jan 20, 2011 11:54 am |
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mine was like that, mines is non vvt tho, changed the tps and the crank angle sensor and made no difference, it was some little filter thing to do with the air and the computer, ended up costing 80 bucks and suzi store fixed it.
other option is to rev it more haha
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dodgy brothers mechanical
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steak_knife
az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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Posted: Fri Jan 21, 2011 8:15 am |
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smiffkid wrote: mine was like that, mines is non vvt tho, changed the tps and the crank angle sensor and made no difference, it was some little filter thing to do with the air and the computer, ended up costing 80 bucks and suzi store fixed it.
other option is to rev it more haha
 the what?
Do you mean intake air temp sensor?
That "could" make it run rich/lean, causing a miss fire. But I have never seen one fail unless it was physical damage..
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smiffkid
az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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Posted: Fri Jan 21, 2011 8:30 am |
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yea thats what i ment.
ours had got oil in it. steep climbs with a little bit to much oil, never mind
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dodgy brothers mechanical
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atari4x4
az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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Posted: Fri Jan 21, 2011 8:34 am |
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smiffkid wrote: yea thats what i ment.
ours had got oil in it. steep climbs with a little bit to much oil, never mind
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atari4x4
az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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Posted: Fri Jan 21, 2011 8:43 am |
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so you had THAT much oil in your engine it was flowing out of your air intake? WTF are you sure it was you IAT??
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smiffkid
az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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Posted: Fri Jan 21, 2011 12:11 pm |
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na its behind the motor between fire wall and motor. will find out wat its called, cant remember
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dodgy brothers mechanical
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steak_knife
az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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Posted: Sat Jan 22, 2011 4:19 am |
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smiffkid wrote: na its behind the motor between fire wall and motor. will find out wat its called, cant remember
MAP sensor, if you were getting oil in that your intake would of been full of oil to
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I used to be indecisive,
now I'm not so sure.....
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smiffkid
az supporter
Joined: Fri Aug 13, 2010 12:55 pm Posts: 3266 Location: perth wa
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Posted: Sat Jan 22, 2011 7:31 am |
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that sounds more like it
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dodgy brothers mechanical
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