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Old 10-08-2018, 06:28 PM   #31
Broomel
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Originally Posted by InstantCustard View Post
If you completely blocked off the front of the throttle body then the idle control valve would also be starved, the IACV draws air from the throttle body just in front of the butterfly, so the engine should choke.


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I think it was managing to pull air from the crank case and rocker cover from the other little take off in front of the butterly hence it still managed to run, once I blocked this it did stall. makes sense really the the rough revving at idle is still not fixed.
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Old 10-08-2018, 07:50 PM   #32
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Look on the throttle body. There is a return spring for the throttle cable. A small screw there is part to do with the idle.

Wind it out until not touching the stop. Then wind it in until it just touches.

Do another TPS reset.

Just another suggestion...
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Last edited by AGoaty; 11-08-2018 at 12:26 AM.
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Old 13-08-2018, 06:46 AM   #33
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tried all of the above, replaced lambda and tps neither made a difference. still idles high and does not rev cleanly, in fact the lambda code keeps coming back.

just going to ignore it and see what happens.
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Old 13-08-2018, 07:11 AM   #34
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Default 1.8 vvc teething issue

You replaced the brown temperature sensor?
I personally would have tried this first as itís the most likely culprit and cheap.
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Old 13-08-2018, 07:13 AM   #35
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You replaced the brown temperature sensor?


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It will be a black one on MEMS 3.

I have to suggest going back to basics. Check timing belts, do compression test etc. If there is a fault internally then the ECU tries to compensate for this.
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Last edited by AGoaty; 13-08-2018 at 07:15 AM.
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Old 13-08-2018, 07:34 AM   #36
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Are you running a servo? if so is it leaking(air)? if not have you blocked the hole in the manifold?
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Old 13-08-2018, 07:53 AM   #37
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Default 1.8 vvc teething issue

It would be revving a lot higher if he hasnít blocked the hole for the brake servo, surely?


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couldnt be bothered to stretch that far to pull it out.
Quote:
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I love it

Last edited by InstantCustard; 13-08-2018 at 08:28 AM.
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Old 15-08-2018, 08:45 PM   #38
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Quote:
Originally Posted by InstantCustard View Post
You replaced the brown temperature sensor?
I personally would have tried this first as itís the most likely culprit and cheap.
you win. swapped that and it's fine now.
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Old 15-08-2018, 08:46 PM   #39
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Great news! Glad you got it sorted.


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I love it
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