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 Post subject: Re: Loom building tips and tricks?
PostPosted: Wed Jan 17, 2018 4:24 am 
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Joined: Fri Feb 28, 2014 1:03 pm
Posts: 1227
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79
Shielded is preferred, but twisted at a minimum.

We use an electric drill and vice to twist sensor wires. Make sure to cut off the bits that have been crimped at either end.


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 Post subject: Re: Loom building tips and tricks?
PostPosted: Fri May 25, 2018 5:25 am 
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Joined: Mon Feb 19, 2018 7:45 pm
Posts: 4
ECU Model: S60 Pro
Firmware Version: 58
Does anyone have an recommendations for multi pin bulkhead connectors? My car has a fibreglass body on a steel tube frame and I am mounting the ECU inside the car with detachable engine and chassis looms exiting the firewall/bulkhead.


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 Post subject: Re: Loom building tips and tricks?
PostPosted: Fri Dec 28, 2018 2:07 pm 
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Joined: Sat Nov 19, 2016 12:43 pm
Posts: 10
Location: Ottawa Canada
ECU Model: S60 Pro
Distributor: eurospeed
Firmware Version: 62.02
Hi guy's I have sent a message to Alex at DTA regarding the sensor wires but he is having a well deserved rest. So I thought I would post this question on the forum to see
what you guy's think. I made my loom 10 years ago. I followed the wiring diagram, that is I run one 5v red wire from pin #9 and spliced off of it as I passed each sensor (soldered and heat shrink). I did the same when returning with the main ground wire terminating on pin #33. I'm now adding an oil pressure sensor and went back to the wiring diagram and now have noticed a paragraph in which it states,

"All 5 volt and Sensor Gnd connections are equivalent (except Lambda
Gnd). Use the ones which are most suitable for the sensors connected. If
not using twisted pair wire, twist together separate wires a pitch of approx.
2.5 cm"
So I'm to run one 5v and one Gnd wire for each sensor twisted all the way back to the ECU and then somehow join all the 5v sensor wires and all the Gnd wires to a single wire each before going into the ECU???? Thanks to all.


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 Post subject: Re: Loom building tips and tricks?
PostPosted: Fri Dec 28, 2018 3:12 pm 
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Joined: Tue Jan 16, 2018 9:38 am
Posts: 62
Location: Aberdeen
ECU Model: S100 Pro
Distributor: DTA
If what you have works, I'd say leave it as-is. Good practice to avoid noise and interference is the twisted pair method stated, but if you're managing with a "ring main" style setup with no issues you should be ok.

I run individual wires from each sensor right back to within a few inches of the ECU connectors, and then splice them together (The 5v and Sensor grnds) for the final few inches into the connector.

Steve


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 Post subject: Re: Loom building tips and tricks?
PostPosted: Sat Jan 12, 2019 10:26 am 
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Joined: Sat Nov 19, 2016 12:43 pm
Posts: 10
Location: Ottawa Canada
ECU Model: S60 Pro
Distributor: eurospeed
Firmware Version: 62.02
Thanks Steve, my issue is that at the alternator the voltage fluctuates rapidly between 14.29 to 14.21, however the DTA reads 14.1 to 14.8 (fluctuating rapidly).
I'm having idle problems and was thinking that the injectors are not giving steady flow.

Ross


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