Do you actually have any problems with the turbo actuator or loss of power? If not then you may just be miss diagnosing a fault which does not actually exist. To verify, have you scanned for codes or is that why you are asking about connecting to the 14 pin DLC in your other thread?I have intermittent 12v problems... also power to the vacuum control for turbo
Thanks KeithDo you actually have any problems with the turbo actuator or loss of power? If not then you may just be miss diagnosing a fault which does not actually exist. To verify, have you scanned for codes or is that why you are asking about connecting to the 14 pin DLC in your other thread?
The wiring to the turbo vacuum actuator comprises two wires, a BROWN 12 volt feed from the ECM and a second wire (sorry can't remember colour) which is grounded by the ECM at a variable rate by PWM control to control the opening/closing of the valve. You should be able measure 12 volts relevant to ground on the brown wire but any further diagnosis will require a scan tool.
And I can't help with A/C as my UK spec doesn't have it!
Keith.
For both I disconnected the vacuum lines at actuator and bypassed it and the westgate on the turbo worked fine I also did the same with the airbox flap and had the same result that's what brings me to electricalEngine vacuum is used for both turbo activation (depending upon engine ... US OM612 did) *and* air box flap control/motion. (and power brakes)
So a disconnect or breakage of the vacuum hose could affect both systems.
--dick
Wayne,For both I disconnected the vacuum lines at actuator and bypassed it and the westgate on the turbo worked fine I also did the same with the airbox flap and had the same result that's what brings me to electrical
Hi Keith sorry to be a pain where will I fined the ECM and PWM pleaseDo you actually have any problems with the turbo actuator or loss of power? If not then you may just be miss diagnosing a fault which does not actually exist. To verify, have you scanned for codes or is that why you are asking about connecting to the 14 pin DLC in your other thread?
The wiring to the turbo vacuum actuator comprises two wires, a BROWN 12 volt feed from the ECM and a second wire (sorry can't remember colour) which is grounded by the ECM at a variable rate by PWM control to control the opening/closing of the valve. You should be able measure 12 volts relevant to ground on the brown wire but any further diagnosis will require a scan tool.
And I can't help with A/C as my UK spec doesn't have it!
Keith.
Wayne.
Can you go back to the start of your problem and describe exactly what is happening to your vehicle. the only thing in common with the faults is the vacuum system. Eric.
Exactly what I asked earlier in the thread and unfortunately did not get a direct answer to!Do you actually have any problems with the turbo actuator or loss of power? If not then you may just be miss diagnosing a fault which does not actually exist. To verify, have you scanned for codes...
Keith.
We where on a long holiday and the turbo would so working and sometimes cut back in but not for hours I also noticed the red light on the recycle flap switch would go out and we would loose the aircon if the light came back on we would have the aircon.Exactly what I asked earlier in the thread and unfortunately did not get a direct answer to!
Keith.
Update I hot wired the red wire on the vacuum valve to the recycle flap, flap close air conditioning working now to trace wiring need to fined diagramsWayne.
You have a vacuum problem. There is a restriction in the T piece where the line goes into the booster, the restriction allows the brakes to work if the system has a leak. Check the restriction is not blocked then go over all the lines and find the leak. The rubber tube is cheap and easily replaced. Eric.
Borrowed a vacuum gauge testing all lines today thanks EricWayne.
You have both a vacuum and an electrical problem, Be very careful hot wiring anything, you can damage the computer, The air con wiring is usually done locally organised by the dealer so you will not find a cct, The turbo control is driven by a series of pulses, you should not be able to see them with a simple meter, find your vacuum leak, you will do a lot better if you get a vacuum gauge, there are plenty around, they were used to tune petrol cars up until recently. Eric.