CAJ Innovations Forums - MyECU current draw when switch is off.

05/10/25 at 22:29:23

	Welcome, Guest. Please Login or Register
	Welcome to our forum.

Home

Help

CAJ Innovations Forums › MyECU › Getting started with MyECU › MyECU current draw when switch is off.

(Moderators: _Cliff_, YaBB Administrator)

‹ Previous Topic | Next Topic ›

Pages: 1 2

MyECU current draw when switch is off. (Read 16722 times)

YaBB Administrator YaBB Administrator Offline I love YaBB! Posts: 679 The Land of YaBB	Re: MyECU current draw when switch is off. Reply #15 - 07/27/11 at 11:48:05 Yes that is ok. Mine are powered from the fuel pump relay.
Back to top	The Administrator. IP Logged

COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: MyECU current draw when switch is off. Reply #16 - 07/27/11 at 14:04:03 I like your idea better. I will re-do the wiring while I wait for the parts. Thanks.
Back to top	44 1/2 degrees North, 1036m up. IP Logged

COnewbie

Full Member

Offline

97 Sport1100i My16M MkVII
2 LC-1s

Posts: 120
Central Oregon, USA
Gender: male

Re: MyECU current draw when switch is off.
Reply #17 - 08/02/11 at 05:35:14

I got my new Shorai battery Saturday, and installed it Sunday. The Lithium battery is less than half the weight, and about 2/3 the size of my old battery. I removed the O2 sensor power wires from the ECU Relay and installed them on the Fuel Pump Relay. The first thing I noticed when I turned on the ignition switch is that the O2 sensors are only heated for about 2 seconds, while the Fuel Pump is running. That is not long enough to bring the O2 sensors up to temperature. The LC-1 Manual has me confused on the heating issue. On one hand, they say the LC-1s must be connected and operating when the engine is running. On the other hand, they say it is NOT a good idea to switch it on before the engine is started. What experience do other LC-1 users have, and how did they connect the power? Embarrassed

BTW, I pulled the Headlamp relay while I am doing the testing and adjusting to save the new battery.

44 1/2 degrees North, 1036m up.

IP Logged

YaBB Administrator

Offline

I love YaBB!

Posts: 679
The Land of YaBB

Re: MyECU current draw when switch is off.
Reply #18 - 08/02/11 at 11:43:24

The LC1 requires about 30 seconds to be useful.
Your way you only had a 5 second jump.

MyECU has a few delays in going into closed loop. It will wait for the oil temp to rise a certain amount.
This can be shortened by taking the engine over 3000RPM. This was for some in cold climates and short trips.

With my Breva 750, which spins too easily, I sometimes find I've started going closed loop before the sensor is working properly.

The Administrator.

IP Logged

COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: MyECU current draw when switch is off. Reply #19 - 08/03/11 at 03:48:12 So, since I am now powered off of the fuel pump relay instead of the ECU relay, the sensors will get a 2-5 sec heat, and then resume heating while the engine is cranking and running, but since the ECU won't go closed loop until the oil temp is up, everything should be OK, right?
Back to top	44 1/2 degrees North, 1036m up. IP Logged

YaBB Administrator YaBB Administrator Offline I love YaBB! Posts: 679 The Land of YaBB	Re: MyECU current draw when switch is off. Reply #20 - 08/03/11 at 07:16:09 Yes, and keep the revs under 3000.
Back to top	The Administrator. IP Logged

COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: MyECU current draw when switch is off. Reply #21 - 08/03/11 at 07:53:44 OK, got it. Thanks again for your help and advice.
Back to top	44 1/2 degrees North, 1036m up. IP Logged

samurai

YaBB Newbies

Offline

I love MyECU!

Posts: 5

Re: MyECU current draw when switch is off.
Reply #22 - 09/18/11 at 07:14:00

I had this problem with my M16 Kit, T6 is a transistor driving the ecu relay, and as Field effect transistor device is easy to damage by electrostatic discharges, not a issue in tropical weather with 75 and up humidity porcentage.
Any way it was swaped by a litle reed relay,(recycled). End of the problem. Think a relay is not fancy but more reliable. My opinion Wink

IP Logged

COnewbie Full Member Offline 97 Sport1100i My16M MkVII 2 LC-1s Posts: 120 Central Oregon, USA Gender:	Re: MyECU current draw when switch is off. Reply #23 - 09/18/11 at 09:25:04 A lot of reed relays are sensitive to vibration, but I will keep that in mind. I have a collection of small reed relays left over from early days in the instrumentation field. Right now, everything is fine, so I am reluctant to "crack the shell" again.
Back to top	44 1/2 degrees North, 1036m up. IP Logged

Pages: 1 2

‹ Previous Topic | Next Topic ›

« Home

‹ Board

Top of this page