ECM fault?

Mike Rolica mrolica at meridian-mag.com
Wed Nov 10 18:47:17 GMT 1999


Buy a new car :-) sell it.
Mike Rolica
EXT. 260
 :-)


	-----Original Message-----
	From:	Akselrud, Boris [SMTP:AkselruB at moodys.com]
	Sent:	Wednesday, November 10, 1999 1:29 PM
	To:	'gmecm at efi332.eng.ohio-state.edu'
	Cc:	'n5xmt at bellsouth.net'
	Subject:	RE: ECM fault?

	1. I am dealing with the problem for three years
	2. I've done all the
	
scanning/scoping/replaising/maintanence/doublechecking/dealership/shop
	3. I do have bought a service manual from Helm Inc and have it
memorized
	4. I've done everything that was suggested so far by the mail list
and done
	it multiple times in past

	I have stated in my original post that I have done all that you are
talking
	about before I even though of posting on the mail list. What we were
doing
	so far is reiterating things that have been done by me with the
engine.

	The objective of my post was to see if there is a commone experience
with
	that particular engine and ECM which woudl cause such idle
behaviour.
	Apparently there is not and I have an abnormal case.

	If there is nothing that I have not tried so far and nothing new can
be
	suggested, then the thread is over.

	I am greatful for everybody's input.

	PS: Idle fluctuation is about 50..80 RPM, but when it falls it is
causing
	roughness and shaking the whole body.

	-----Original Message-----
	From: David Cooley [mailto:n5xmt at bellsouth.net]
	Sent: Wednesday, November 10, 1999 11:50 AM
	To: gmecm at efi332.eng.ohio-state.edu
	Subject: RE: ECM fault?


	Boris,
	Blunt and to the point:
	You said the vehicle has done this for 3 years.  Why suddenly it's a

	serious issue?
	You haven't said how many RPM's the idle hunts up and down, you
haven't 
	provided *ANY* scan tool data IE: block learn/integrator (Fuel
learning) 
	values, recomendations have been made and you change the subject in
the 
	next message and skip over the suggestion.
	Troubleshooting *MUST* be done in an orderly manner if it's to turn
up any 
	problems.
	There is a wealth of info on this list and people that are willing
to bend 
	over backwards to help other list members out, but you have to be
willing 
	to take that advice and apply it or you'll get no where.
	The first step you need to take is to buy a service manual so you
can check 
	the basics, Plugs, Wires, PCV valve etc.  the ECM/sensors should be
the 
	last thing checked after all the normal mechanical/vacuum related
items.


	At 11:19 AM 11/10/1999 -0500, you wrote:
	>I am wondering if there is anybody on that list who is doing
engine/ECM
	work
	>for living, has seen 5.7 TBI run smoothly at idle and has
experience with
	>these, within drivable distance of New York City and don't mind
looking at
	>my case?
	>I feel I've done everything I could myself as well as
dealership/auto shop.
	>

	===========================================================
	David Cooley N5XMT Internet: N5XMT at bellsouth.net
	Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
	We are Borg... Prepare to be assimilated!
	===========================================================



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