Problem dta s40
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- Posts: 3
- Joined: Thu Dec 27, 2018 8:17 am
- ECU Model: S40 Pro
- Distributor: evolucion a (spain)
- Firmware Version: 82.13
Problem dta s40
good afternoon, I am about to finish the construction of a racing car, to which I made a custom harness with ecu dta s40. well I have 2 problems, 1, I can't connect from the pc to the ecu, I have com 1 well configured I think, but.... and 2, is that we have turned on the car, but it doesn't turn on, and We do not know if it is because the crankshaft pulse signal is missing. ps: the fuel pump relay must be activated when making contact? or only when starting? thanks and good day
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- Posts: 3586
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Problem dta s40
Does the fuel pump prime on key on ? This will indicate at least the ecu is alive, and the fuel pump circuit is wired ok.
How are you connecting to the ecu ?
How are you connecting to the ecu ?
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- Posts: 3
- Joined: Thu Dec 27, 2018 8:17 am
- ECU Model: S40 Pro
- Distributor: evolucion a (spain)
- Firmware Version: 82.13
Re: Problem dta s40
the fuel pump works through the ecu, in the relay there is 12v and the negative signal should be through pin 1 of the ecu, but it also comes out positive. bad wiring? bad ecu?
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- Posts: 3586
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Problem dta s40
It may appear positive 12v when the fuel pump trigger is off.
That's just how transistors work.
That's just how transistors work.