coozer
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 posted on 19/1/09 at 12:22 PM |
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ST170 VVT Operation?
I had decided after reading tons of forums that the VVT on my ST install was to be activated at 4K rpm by the change light output on my Megajolt.
Now theres a spanner in the works in the form of the supply voltage. Some dude on a Focus forum reckons the voltage to the solenoid is 5V.
I assumed it would be 12v but now I'm not sure....
Anyone got a Ford TIS cd for the Focus can see if it is detailed on there?
OR, has anyone done this already can tell me the way to go?
Ta,
Steve
1972 V8 Jago
1980 Z750
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dinosaurjuice
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| posted on 19/1/09 at 02:04 PM |
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according to my TIS (2002-2004 focus) its 12v and is fed +ve from pwr relay and earthed by ecu when activated.
Picture says it all:
 
HTH Will
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coozer
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| posted on 19/1/09 at 02:33 PM |
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Thanks Will, just the job.. live feed and ECU earth due to common feed from the relay.
I wonder... should I use the change light off the MJ to switch a relay..... may be worth it to protest the MJ seeign as theres a meaty 20amp fuse
there.
Cheers, thats me sorted.
1972 V8 Jago
1980 Z750
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dinosaurjuice
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| posted on 19/1/09 at 02:36 PM |
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yep i would definately use a relay, i doubt the MJ is designed for anything more than a warning lamp.
are you using carbs?
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coozer
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| posted on 19/1/09 at 03:35 PM |
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Yep, ZX9R carbs, I have some throttle bodies to dabble with so may be upgrading to EFI soon.
Carbs it is for the mo tho.....
1972 V8 Jago
1980 Z750
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