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Old 08-08-2018, 06:51 AM   #16
gazwad
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the fact that the old engine had the same issue would suggest that the problem is caused by a component which was fitted to the old engine and transferred to the new engine - such as a sensor. tps would be my first guess, if you have a tool for reading the live data from the ecu (such as the torque app on and android phone and a cheap blue tooth adaptor) you can check the tps is working through its range and check temperature sensors etc
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Old 08-08-2018, 07:02 AM   #17
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As far as we can tell heís not used any of the old sensors, unless itís a component thatís being used still but not directly connected to the engine.
What fuel pump are you using?


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Old 08-08-2018, 07:55 AM   #18
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Test for air leaks by dribbling water over any suspect area. Inlet manifold, breather pipes, fuel injector o rings are most common causes.

Engine will cough or die if water gets in.
Or spray wd40 over the areas, the engine will rev up if the wd40 gets in.
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Old 08-08-2018, 09:51 AM   #19
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As far as we can tell heís not used any of the old sensors, unless itís a component thatís being used still but not directly connected to the engine.
What fuel pump are you using?


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no sensors swapped between old and new engine . I did run the larger throttle body on the 1.6 with the iacv blanked and it worked fine once warmed.

fuel pump is a Bosch 044 replica jobby.
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Old 09-08-2018, 12:27 PM   #20
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lambda sensor error came back so I have ordered a new one.
also the engine runs with the throttle body completely blanked... but I cannot find any leaks with spraying water everywhere .
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Old 09-08-2018, 12:44 PM   #21
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A mate of mine used his ecig to find an air leak, just blew his pretty cloud into the engine bay and looked to see where it was drawn in.


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Old 09-08-2018, 04:15 PM   #22
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idle control valve stuck open
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Old 09-08-2018, 07:58 PM   #23
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lambda sensor error came back so I have ordered a new one.
also the engine runs with the throttle body completely blanked... but I cannot find any leaks with spraying water everywhere .
Mines the same in that I can blank the inlet off and it will stay running!
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Old 09-08-2018, 08:00 PM   #24
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idle control valve stuck open
How do I fix it then Gazwad or is it a new one?
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Old 09-08-2018, 08:51 PM   #25
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Have a listen to it when you shut the engine off, you should be able to hear a smooth whine as it resets itself, if it clicks or makes no noise then itís stuck.
You can either try and clean it and lubricate it or replace it.
The best thing is found for cleaning them was Napier gun cleaner, give it a good blast with that and watch the dirt poor out and it leaves a film of lubricant on it at the same time.
Iím sure I have one of each (MEMS 2&3) here if you want me to send you one? Iíve no use for them anymore.


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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 10-08-2018, 10:19 AM   #26
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Mines always clicked (I think) what's the downside of it not working properly ?
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Old 10-08-2018, 10:28 AM   #27
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If itís clicking then odds are itís stuck, itís a stepper motor that moves a piston so it should sound like a smooth whine.
Happy to post you a different one if you want to try it, I assume Iíve only kept them because they worked!
Message me your address if you want one.


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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 10-08-2018, 05:46 PM   #28
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changed lambda and it made no difference.
blocked iacv and it made no difference.
I think engine was drawing in air from the breather on the throttle body, hence how it was running with it blanked.
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Old 10-08-2018, 05:53 PM   #29
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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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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 10-08-2018, 06:26 PM   #30
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any more suggestions chaps ?
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