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| Rebuilt G16B idling like a dog https://auszookers.com/forum/viewtopic.php?f=5&t=27021 |
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| Author: | shane1992 [ Sat Oct 22, 2011 7:06 pm ] |
| Post subject: | Rebuilt G16B idling like a dog |
Hey, finally cranked over my rebuilt engine. On idle it is reving from 1000-2000rpm up and down, and running really lumpy and rough... but it drives okay.. We have tested the leads, plugs (there new of course) Injectors, and a few other things like the idle control and what not.. Can anyone suggest any ideas to check etc? |
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| Author: | steak_knife [ Sat Oct 22, 2011 7:09 pm ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
Code''s....... It's hunting, searching for a signal.... |
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| Author: | royce [ Sat Oct 22, 2011 8:17 pm ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
go back to your testing the idle control how did you do this? if you were to stick a test light across the 2 wires and observe it while idling, does the test light get brighter when the revs rise and then get duller and you can almost see the flash as the idle lowers? if so then the ecu is doing it and you need to find out whats upsetting it, if not its an air leak or the cold start idle control isnt working due to air lock in the cooling system or blockage or something check all your intake is nice and sealed up, sometimes a leak here makes the afm give a bad signal and it goes crazy |
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| Author: | shane1992 [ Sun Oct 23, 2011 9:07 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
royce wrote: go back to your testing the idle control
how did you do this? if you were to stick a test light across the 2 wires and observe it while idling, does the test light get brighter when the revs rise and then get duller and you can almost see the flash as the idle lowers? if so then the ecu is doing it and you need to find out whats upsetting it, if not its an air leak or the cold start idle control isnt working due to air lock in the cooling system or blockage or something check all your intake is nice and sealed up, sometimes a leak here makes the afm give a bad signal and it goes crazy We used the test light, it was a faint glow, I will re test it tomorrow as we didnt leave it there and observe it for awhile... If so, how do we find out why the ecu would be doing it for? Air intake is pretty well sealed up, I will check and see if can be tightened anymore... A blockage or air lock in the cooling system... the engine block has been cleaned out prior to rebuild, what other possible blockages could there be? I am 99% sure the radiator is all clear... Thanks for the help |
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| Author: | royce [ Sun Oct 23, 2011 9:15 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
mine used to do it from an air leak, was just all the vacuum hoses being a little loose so it doesnt take much |
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| Author: | shane1992 [ Sun Oct 23, 2011 9:30 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
royce wrote: mine used to do it from an air leak, was just all the vacuum hoses being a little loose so it doesnt take much
my vacuum hoses are set up different to some other cars, IMG]http://i1185.photobucket.com/albums/z347/shanemarsetti/318261_1876688089355_1605832400_31442640_7422419_n.jpg[/IMG] 
there are 2 brocken tabs with no hoses on them though, this is how the engine was set up when Igot it I just replaced them with blue ones... |
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| Author: | shane1992 [ Sun Oct 23, 2011 9:30 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
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| Author: | royce [ Sun Oct 23, 2011 9:33 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
there is 2 potential leaks right there, unplug those broken solenoids where are those extractors from? |
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| Author: | shane1992 [ Sun Oct 23, 2011 9:43 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
Unplug, and see how it runs? Those are calmini extractors, I got them from lowrange |
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| Author: | shane1992 [ Mon Oct 24, 2011 3:41 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
Tested the idle control, seemed fine no flicking lights on the tester bulb... I have one vacuum hose on VSV purge control which isnt hooked up the piece is brocken and I will need a new one to be able to hook a hose up to it.. I am re-adjusting the valves this arvo |
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| Author: | royce [ Mon Oct 24, 2011 3:55 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
what is your idea of seems fine? if the light was lit up then the ECU is holding the revs up, its not supposed to do that so you need to find the real problem |
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| Author: | losfer [ Mon Oct 24, 2011 8:51 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
make sure all the air is purged out the cooling system , you may have an airlock causing the idle to hunt. |
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| Author: | stockman [ Mon Oct 24, 2011 11:27 am ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
Make sure you have the vacuum hose from the manifold to the brake booster. |
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| Author: | shane1992 [ Tue Oct 25, 2011 10:45 pm ] |
| Post subject: | Re: Rebuilt G16B idling like a dog |
It seems to have a miss.. I think I didnt set the distributer right when putting it back together... So thats going to be the first thing To look at again, just need that star shaped allen key thingo... |
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