Still idling too high
#1
Still idling too high
Right i still have the issue of the car idling high, currently it's at 1400rpm which has dropped slightly since work.
This started when i replaced the TB with a replacement 2wd and changed the throttle bracket to an Airtec item as prior to that it was all idling fine.
I have removed the inlet and fitted new plenum gasket, helicoiled the threads in the plenum so it perfectly tightens up and fitted a new O ring between the throttle body to replace the old cometic item.
The TPS was set at 0.35v at idle before the TB was removed so will still be in the same place now fitted back on..
I have the idle screw pretty much all the way in but i seem to remember that it was half way when fitted to the car once before, so what is causing this?
How to test the ISCV?
Any idea's folks?
This started when i replaced the TB with a replacement 2wd and changed the throttle bracket to an Airtec item as prior to that it was all idling fine.
I have removed the inlet and fitted new plenum gasket, helicoiled the threads in the plenum so it perfectly tightens up and fitted a new O ring between the throttle body to replace the old cometic item.
The TPS was set at 0.35v at idle before the TB was removed so will still be in the same place now fitted back on..
I have the idle screw pretty much all the way in but i seem to remember that it was half way when fitted to the car once before, so what is causing this?
How to test the ISCV?
Any idea's folks?
#5
Completely cuts out, still runs the same if the TPS is disconnected
Can anyone comment on the idle screw position, as.I would have thought they would be roughly similar as I said above I could have swarn it was half way in before when the car was setup and running spot on
Can anyone comment on the idle screw position, as.I would have thought they would be roughly similar as I said above I could have swarn it was half way in before when the car was setup and running spot on
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#9
PassionFord Post Whore!!
iTrader: (4)
Get it warmed up, unplug the ISCV and set the idle to 1000 rpm using the idle screw. The engine should idle fine with the ISCV unplugged. If you can't get it screwed down that low, then there's something wrong. IIRC the TPS will affect the ISCV and therefore the idle speed.
#10
PassionFord Post Whore!!
iTrader: (1)
Firstly do you have 2WD management, i.e. L1/L6, by your TPS reading I am guessing you don't and therefore have L8?
Get it up to temperature and disconnect the valve, make sure no electrical load is applied and the fans are not running!
Then UNSCREW the idle screw to increase the idle speed (You will need to loosen a locknut first) it's important this is tightened correctly afterwards, else it and the idle screw can fall out!
You want to see around 850 RPM, reconnect the valve, the revs should raise then fall again.
It sounds like at the moment you are using the ISCV to control the idle speed
Martin
Get it up to temperature and disconnect the valve, make sure no electrical load is applied and the fans are not running!
Then UNSCREW the idle screw to increase the idle speed (You will need to loosen a locknut first) it's important this is tightened correctly afterwards, else it and the idle screw can fall out!
You want to see around 850 RPM, reconnect the valve, the revs should raise then fall again.
It sounds like at the moment you are using the ISCV to control the idle speed
Martin
#15
I've found that life I needed.. It's HERE!!
iTrader: (3)
PS,i have the same problem with my hart plenum and i re fitted the original gasket again!
Last edited by Thanasis; 01-09-2012 at 04:07 PM.
#16
The car ran fine on the plenum originally, but the threads on the Hart are weak and some where stripped so it had to come off to be helicoiled - every hole was done and new gasket and O ring used - i have removed the iscv and stripped it and will soak in petrol for a few hours as it's not 100% bad at all - i do hear you regarding the tps i will check that Monday when i have access to the meter - currently set at 0.35v CT and i beleive i could only get 3.09v WOT due to the Airtec bracket but again that needs to be checked again.
I have set this before at this figure and it ran perfect but their are so many alternative figures out their i think it's trial and error.
One thing the car runs well i just want this sorting
Cheers for the advice lads it's much appreciated
I have set this before at this figure and it ran perfect but their are so many alternative figures out their i think it's trial and error.
One thing the car runs well i just want this sorting
Cheers for the advice lads it's much appreciated
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