Cold Idle
#1
Cold Idle
Can someone point me at the correct table(s) or scalars ('7747 ECU) to work on the initial open loop cold idle RPM? When I first start the engine the idle surges. It seems to bounce off the stall saver RPM setting then up to about 600 and back. This goes on for a good 15 seconds before setting to a smooth idle. The smooth idle is lower then I would expect for a cold engine.
Thanks,
Steve
Thanks,
Steve
#2
Moderator
iTrader: (1)
Join Date: Mar 2002
Location: Chasing Electrons
Posts: 18,401
Likes: 0
Received 215 Likes
on
201 Posts
Car: check
Engine: check
Transmission: check
Re: Cold Idle
In the Tuning Guide Book sticky, chapter 5, under the '8063/'7747/'8746 section, the IAC Logic thread fully describes the '7747 IAC control.
RBob.
RBob.
#3
Re: Cold Idle
Thank you. I had read that section at least once all the way through, but it didn't click before. Makes sense now. and I also have a clearer idea where to look for my issue.
Last edited by srgould41; 07-07-2014 at 02:29 PM.
Thread
Thread Starter
Forum
Replies
Last Post