Re: logger directly to ECU
#37397
September 29, 2004 05:40 am UTC
September 29, 2004 05:40 am UTC
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Joined: Jun 2002
Posts: 1,046
Chilliwack,BC
John Hartman
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Serious Member
Joined: Jun 2002
Posts: 1,046
Chilliwack,BC
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Fraser that sounds promising  but what about the chips and circuits in the datalogger cables we normally run? Or we still run that, but not thru the OBD1 port?
91 Eagle Talon TSi AWD 5spd
91 Eagle 2000 GTX AWD 5spd
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Re: logger directly to ECU
#37398
September 29, 2004 02:31 pm UTC
September 29, 2004 02:31 pm UTC
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Joined: Apr 2001
Posts: 1,107
Stouffville, Ontario, Canada
Octavio Barrera
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Serious Member
Joined: Apr 2001
Posts: 1,107
Stouffville, Ontario, Canada
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I'll clarify my previous post. The pin #1 (data) on the diagnostic connector goes to pin #1 on the ECU and pin #10 on the diagnostic connector goes to pin #2 on the ECU, all you have to do is connect the data pin of your datalogger cable to pin #1 on the ECU and pin #2 on the ECU and the ground connector of the datalogger cable to ground, I would suggest connect both cables to the same point. Connecting pin #2 of the ECU to ground has the same effect as connecting pin #10 to pin #12 (ground) on the diagnostic port. Amin, pin #1 and pin #2 on the ECU are located on the big connector, you can check here
91 TSI AWD - sold
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Re: logger directly to ECU
#37399
November 02, 2004 01:32 am UTC
November 02, 2004 01:32 am UTC
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Joined: Jun 2004
Posts: 137
Markham, ON
Justin Ngui
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Member
Joined: Jun 2004
Posts: 137
Markham, ON
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Hey Octavio,
I've connected the data pin on the connector to pin 1 on the ecu and pin 10 on the connector to pin 2 on ecu and the ground of the connector to a good ground.
I am using TMO software from a laptop running windows XP.
I have verified that voltage is coming out of both ecu pins and voltage is coming out of pin 1 on the connector (data).
But when I try to connect with the TMO software it says it's not properly connected to the ECU.
Any ideas?
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98 EK DX | 03 IS300 | 93 ELANTRA TURBO | 85 AE86
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Re: logger directly to ECU
#37400
November 02, 2004 05:43 pm UTC
November 02, 2004 05:43 pm UTC
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Joined: Apr 2001
Posts: 1,107
Stouffville, Ontario, Canada
Octavio Barrera
Serious Member
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Serious Member
Joined: Apr 2001
Posts: 1,107
Stouffville, Ontario, Canada
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Hey Justin,
Do you know how to connect a LED to the diagnostic port to get the error codes?, if you do, you can connect the same LED directly to the ECU (pin #1) and verify that the ECU is sending data out.
If you want I can help you finding the problem. I have a LED and a palm with me.
BTW your PM box is full.
91 TSI AWD - sold
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Re: logger directly to ECU
#37401
November 05, 2004 01:43 am UTC
November 05, 2004 01:43 am UTC
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Joined: Jun 2004
Posts: 137
Markham, ON
Justin Ngui
Member
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Member
Joined: Jun 2004
Posts: 137
Markham, ON
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Well it looks like it works with the LED to pin#1 and ground. We got error codes with any problem.
But I still get a ECU connection error when I connect to both pins 1 and 2 with the serial cable to the laptop.
Has anyone else experience this kind of error? Or know how what I may be doing wrong?
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98 EK DX | 03 IS300 | 93 ELANTRA TURBO | 85 AE86
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