Jappa Posted May 8, 2021 Report Share Posted May 8, 2021 I have a Link G4, ECU serial no. 6854. Does this version provide ignition idle control and if not is it upgradeable? I have a 3UZ-FE fitted with a Eaton M122 supercharger and are struggling to get the idle speed down below 1500rpm and wish to experiment with ignition idle control but can't "find" it. I had no issue when using the standard throttle body but since fitting a FPV mono blade throttle body I can't get the idle down. It would appear to pass more air when closed even with the idle screw backed right out. I have swapped between the two throttle bodies and the high idle issue is definitely with the mono blade rather than an air leak elsewhere. The mono blade throttle body is new but when held up to the light you can see that the blade doesn't seal 100% so I wish to try ignition idle control. Cheers Jappa Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 8, 2021 Report Share Posted May 8, 2021 Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 17, 2021 Author Report Share Posted May 17, 2021 Not sure why but "idle ignition control" is not there? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 17, 2021 Report Share Posted May 17, 2021 Your pic is not working. Do you not have a "drag files here to attach" thing at the bottom of your screen when editing a post? Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 18, 2021 Author Report Share Posted May 18, 2021 This time? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 18, 2021 Report Share Posted May 18, 2021 I would guess you are probably on very old firmware. Idle ignition control was added in 2011, in version V4.8.1. The last/most recent firmware that is recommended is 4.10.2 Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 18, 2021 Author Report Share Posted May 18, 2021 So can my ecu be upgraded? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 18, 2021 Report Share Posted May 18, 2021 Yes. Can you attach a copy of your map so I can see what version it is currently on and if there are going to be any changes that will effect the tune. Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 19, 2021 Author Report Share Posted May 19, 2021 celica.pcl Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 19, 2021 Report Share Posted May 19, 2021 You are currently on firmware 4.5.1, I dont see any major fuel or ignition control changes after that that will affect your tune so you are ok to go ahead and update to the latest. Make sure you have PC Link V4.10.2 installed on your laptop, you can check by going to >help>about in PC Link. If not you can download it from out website. Then connect to ecu, go to >ecu controls>update firmware and follow instructions on screen. Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 20, 2021 Author Report Share Posted May 20, 2021 Sorted, your assistance is appreciated Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 28, 2021 Author Report Share Posted May 28, 2021 Can a "target rpm" be set somewhere while using ignition idle control with no form of stepper/solenoid ISC being used? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 28, 2021 Report Share Posted May 28, 2021 If you put idle target error on your idle ignition table then it will reference the Idle RPM table in the main idle speed control menu. If you dont see that table you may have to set the idle speed control to one of the closed loop modes (doesnt matter there is no valve). Quote Link to comment Share on other sites More sharing options...
Jappa Posted May 28, 2021 Author Report Share Posted May 28, 2021 That worked very well, rock steady 550rpm idle from cold to running temperature. Brilliant!! Requires 25 degrees of timing when cold moving to -5 degrees at operating temperature, is that a problem? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 28, 2021 Report Share Posted May 28, 2021 No that should be fine. You might find a bit of extra heat around the exhaust manifold at -5. Quote Link to comment Share on other sites More sharing options...
Jappa Posted July 4, 2021 Author Report Share Posted July 4, 2021 Greetings again, Am continuing to play and learn, I have now fitted a bosch two wire isc solenoid and having great success with it. Very happy with the results using closed loop with ignition idle control, except for a very irritating "hold-timer" feature. I can understand why it is there but it find it too aggressive, holds about 200rpm for about 3 seconds. How do I turn it off or tone it way down? I never had a problem with stalling when using idle ignition control only so am keen get a similar result with the closed loop setup. Cheers Chris Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 4, 2021 Report Share Posted July 4, 2021 Will need to see the log and tune. Quote Link to comment Share on other sites More sharing options...
Jappa Posted July 5, 2021 Author Report Share Posted July 5, 2021 Will need a hand to get this info, I am an old broken down fitter with most of my link experience being years ago with a G1 and those little green boxes you spent hours pushing the buttons on...... Like Arny said, I'll be back! Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 5, 2021 Report Share Posted July 5, 2021 https://youtu.be/_P1LRANeO4A Quote Link to comment Share on other sites More sharing options...
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