The splices are a solder joint - no connector unless specified in the wiring
diagrams. I'll pull down the wiring diagrams for you and email them. You
can pierce the harness if you really need to, but it's better to back probe
the connectors to prevent any possible corrosion from the wire pierce (or
you can seal it up with RTV). On the injectors - they are ground switched -
The ASD relay powers them up and the ground switching is controlled via the
PCM.
If the vehicle is running rough on initial start but no problems at normal
temp...it doesn't sound like a wiring issue (not ruling it out though). Do
you have access to a scanner? If you have a DVOM (Digital Volt/Ohm Meter),
check the resistance of the coolant temp sensor when cold and when it's at
normal temp. Let me know what you find.
- Bernd
-----Original Message-----
From: rws [mailto:rwsam2002@yahoo.com]
Sent: Thursday, September 13, 2007 4:20 AM
To: DakotaTruck DML
Subject: DML: Re: Cold Starts causes Check Engine Light + LIMP mode
Hi WiLieR & Bernd,
Re: auto or manual -- it's auto trans.
I will check the ECT sensor and FI wiring and see if
it solves the problem. NAPA said they had the ECT
sensor and was ~$14. Guess I need to drain the
coolant by at least half to prevent it from coming out
of the sensor port.
What do splices look like, crimp style or a Faston
type?
If I read 12v at each FI connector, that means it is
working correctly, right? Likewise, if I measure
resistance to ground on the other FI terminal it
should be zero, right? I may have to pierce the
insulation to measure 12v while engine is running, is
that OK?
On the wiring diagram the FI's grounds are two places,
one with 8
connections and the other with 7 connections - any
idea where the ground points are located?
I'm also going to clean the TB air horn that has more
carbon on it that I expected. It may be affecting the
IAC motor. I will remove it from the intake manifold
to do the cleaning.
Ron
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This archive was generated by hypermail 2b29 : Tue Oct 02 2007 - 15:23:18 EDT