Hi all,
I am looking for some ideas on debugging a TCU - Turbo - waste gate issue.
The background is as follows:
About a year ago, every now and then the orange TCU light would flash. I'd
power cycle and it would go away. Over time it is almost at the point that
this happens every time. At first I thought it was just the waste gate
sticking, but after further investigation I realized that if the waste was
stuck, the servo would move and the cable would bow in and out. (Lockwood
confirmed this).
In my case what happens is the the servo just doesn't move. I can hear is
making the normal "growling" noise, but it doesn't do its normal cycle on
power up. If I start the engine and power cycle the TCU then all is well.
I asked the Lockwood guys and they think I have a faulty servo. I have
reseated all of the cables but it didn't make any difference. I really
don't want to buy a $370 servo just to find out it that its not the problem.
The next step is to go buy a servo to prove this theory, but before I do I'd
be interested in an other ideas.
Thanks, Paul
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