Paul
Try disconnecting the big cable connector and reinserting several times
on the TCU. Sometime's a pin will get corroded or dirty.
Jim
----- Original Message -----
From: Paul McAllister
To: europa-list@matronics.com
Sent: Saturday, August 26, 2006 11:31 AM
Subject: Europa-List: Debugging a TCU Problem
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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