Does anyone know the correct volts or amps or ohms or stucatto signals this
sensor should have so that I can throw a meter onto it? I have the MB
service CD's, but I can't find mention of the rack sensor.
Thanks Dave
----- Original Message -----
From: "Dave M." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; "Aaron Lam" <[EMAIL PROTECTED]>; "Joe Knight"
<[EMAIL PROTECTED]>
Sent: Saturday, October 01, 2005 12:30 AM
Subject: Re: [MBZ] Sensor in Injection Pump '90 300D
John,
I'm not an expert on the 2.5T engine controls, but I have a hard time
buying the claim that an injection pump sensor is bad. I believe the
only sensor on those pumps is a rack position sensor, and I think
there's a procedure in the manual explaining how to test it. If it's
bad, yes it requires pump disassembly to repair, or basically
installing a rebuilt pump ($$$$) or a used pump (only $$$). I'd make
VERY sure that is the problem before doing the swap, and even then I'd
most likely just get a used pump rather than a $2k new/rebuilt. Rusty
might be able to get you a rebuilt unit cheaper, if you do need one.
If you have the time, I would swap pumps between your 2 cars and see
if the problem follows the pump or not. It could be done in one
weekend as DIY.
:-)
-Dave M.
------------------------------
Date: Fri, 30 Sep 2005 16:28:44 -0400
From: "John Peterson" <[EMAIL PROTECTED]>
Subject: [MBZ] Sensor in Injection Pump '90 300D
I've been trying to diagnose a loss in boost in my '90 300D. I brought
it
to the indie who found that (1) a vacuum tranducer is out and (2) he
thinks
a sensor on the injection pump is giving no electronic signal to the ECU.
He says a 2k injection pump is necessary.
Is there any more economical way of changing this sensor? Rebuilt IP?
Seems hard to believe it would be so buried inside that it can't be
replaced
if necessary.
Thanks Friends!
John Peterson
Kingston RI
1990 300D 2.5 127k
1991 300D 2.5 72k
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