ISV when running a stand-alone ECU? - solved
11-03-2012, 06:52 AM
#1
Racer
Thread Starter
ISV when running a stand-alone ECU? - solved
The original ISV seems to be a bit odd and it would be easier to have a 2-pin PWM controllable ISV when running a stand-alone ECU.
Any good options available?
/Dea
Any good options available?
/Dea
Last edited by Dea_944t; 11-03-2012 at 02:45 PM.
11-03-2012, 07:47 AM
#2
Racer
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I'll be running a motec on my build, and was wanting to run a throttlebody with the ISV built in (something like a Buick V6 one from an Aussie Commodore), to simplify things.
11-03-2012, 09:14 AM
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11-03-2012, 10:34 AM
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I have an Emerald k3 and the standard isv has been used, today I have been experimenting by ignoring it and letting the ECU control idle using ignition. It seems ok but more experiments needed.
11-03-2012, 10:39 AM
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With the Electromotive ECU you can run the stock ISV or a GM/ford unit with the right plumbing adapter.
Depending on the needs of the user I will use either one. The GM/Ford units are easier to deal with and the ISV itself is a lot cheaper, but some folks prefer to keep the stock unit since the plumbing is already done and it keeps a stock appearance.
Depending on the needs of the user I will use either one. The GM/Ford units are easier to deal with and the ISV itself is a lot cheaper, but some folks prefer to keep the stock unit since the plumbing is already done and it keeps a stock appearance.
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11-03-2012, 02:45 PM
#8
Racer
Thread Starter
I wish I hade read the manual a bit closer before asking, just found an output specific for unsprung Bosch 3-pin idle valves 
At least your questions made me read the manual....
/Dea
At least your questions made me read the manual....
/Dea
11-03-2012, 03:57 PM
#9
With the Electromotive ECU you can run the stock ISV or a GM/ford unit with the right plumbing adapter.
Depending on the needs of the user I will use either one. The GM/Ford units are easier to deal with and the ISV itself is a lot cheaper, but some folks prefer to keep the stock unit since the plumbing is already done and it keeps a stock appearance.
Depending on the needs of the user I will use either one. The GM/Ford units are easier to deal with and the ISV itself is a lot cheaper, but some folks prefer to keep the stock unit since the plumbing is already done and it keeps a stock appearance.
FWIW I have been using a 4-wire stepper motor with a 4" throttle body on another car and it has not been easy to figure out idle settings, as the stepper motor doesn't seem to react fast enough to throttle inputs. I have found much easier to deal with the Bosch solenoid on the 951.
11-05-2012, 06:57 PM
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I have seen a fair few references to people deleting the ISV and in general finding it fine (maybe foot on the pedal when cold for a moment)
ALso does your aftermarket let you control idle any other way? I have now spent a few days driving with idle controlled by ignition - its around freezing in the UK at the moment and it seems smooth and fine at idle so I plan to delete the ISV this weekend and see how I get on.
ALso does your aftermarket let you control idle any other way? I have now spent a few days driving with idle controlled by ignition - its around freezing in the UK at the moment and it seems smooth and fine at idle so I plan to delete the ISV this weekend and see how I get on.
