[Gmecm] Idle problem

[Steve.Ravet at arm.com (Steve Ravet)]

The thing we're talking about happens with a scan tool attached.  Scan
tools can short pins A&B, connect them with a 10K resistor, or leave
them open.  Each one is a different mode, only "open" leaves the ECM in
stock running mode.  If there's no scan tool connected then your high
idle is some other problem.

--steve


________________________________

	From: gmecm-bounces@diy-efi.org
[mailto:gmecm-bounces@diy-efi.org] On Behalf Of hooker
	Sent: Thursday, September 08, 2005 10:49 PM
	To: gmecm@diy-efi.org
	Subject: [Gmecm] Idle problem
	
	
	I have the same problem on a '747 on a Ford I6, fast idle,
around 1100 RPM.  After reading the responses, I ran out and checked the
resistance from Pin A to Pin B of the connector.  It was 10K ohms!  I
thought I had found the problem, but I checked an uninstalled '747, and
the diag pin (cant remember right now, A9 maybe?) read 10K to ground. 
	 
	Oh well, I will keep looking!
	 
	Tracy
	> -----Original Message-----
	> From: gmecm-bounces at diy-efi.org
<http://lists.diy-efi.org/mailman/listinfo/gmecm>  
	> [mailto:gmecm-bounces at diy-efi.org
<http://lists.diy-efi.org/mailman/listinfo/gmecm> ] On Behalf Of
Programmer
	> Sent: Monday, August 22, 2005 4:06 PM
	> To: gmecm at diy-efi.org
<http://lists.diy-efi.org/mailman/listinfo/gmecm> 
	> Subject: Re: Gmecm [Gmecm] Idle problem
	> 
	> That'll definitely do it ! Wrong scanning mode.
	> 
	> Lyndon
	 
	10K mode also includes fixed, advanced timing.  Try  driving
with the
	scan tool connected in 10K mode and you'll hear the knocking it
	produces.
	 
	--steve