S80

This section is dedicated to discussion of DTA engine control units such as the DTA E48 EXP, P8 Pro, DTA S40, S60, S80, and S100, as well as all things ECU related.

S80

Postby jpr.racing07 » Fri Jan 11, 2019 5:34 pm

Hi hopefully someone can help, i have just changed from a p8 to a s80
Loom changed s80 new, and loaded map from p8 to s80, but it won't start
It can't seem to synchronise but if i remove plugs engine turning over faster it synchronise . How come the set up worked fine with P8 . Next plan fit plugs and try it 24v at starter motor to try and get car too start. But why ok with p8 but not with s80.
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Re: S80

Postby iceman_n » Fri Jan 11, 2019 11:54 pm

do you use coil per plug (cop) or spark plug leads (wires) ??
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Re: S80

Postby Rob Stevens » Sat Jan 12, 2019 4:02 am

Do an oscilloscope test and post up your map as I suspect something hasn't transferred properly and will need a manual check. or just a screen shot of your general engine settings
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Re: S80

Postby jpr.racing07 » Sat Jan 12, 2019 5:51 am

Hi thanks for your replies its waisted spark, when i do crank test it won't
Synchronise dosent even go green with recommended crank sensor positions.,take the plugs out everything works correctly. I have finally got it too start , with 24volts cranking a 12volt starter so that won't last long
.But why was it ok with P8 ,maybe your right Rob something didn't transfer
Correctly
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Re: S80

Postby stevieturbo » Sat Jan 12, 2019 8:29 am

So do the oscilloscope test.

Are all sensors reporting normal ? Are you sure it is wired correctly ?

When I moved from the P8 to S80, the transition was pretty smooth.
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Re: S80

Postby jpr.racing07 » Sat Jan 12, 2019 8:49 am

Hi Steve have done the crank oscilloscope can send photos if needed
With plugs in and plugs out .as for wiring i thoughr it might of been a mistake on my part so send it to the uk to have it checked it was missing an earth so got sorted but still didn't make difference with trying toget it to synchronise. Only way to ger it to start is 24 volts
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ECU Model: P8 Pro

Re: S80

Postby Antral » Sat Jan 12, 2019 11:47 am

Does the loom have the ground connection for the case ( pin on S80 case) this can cause problems if not connected?
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Re: S80

Postby iceman_n » Sat Jan 12, 2019 12:18 pm

he says that when he takes off plugs works fine....so if it uses spark plug leads mayge its an interference noise from the leads....
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Re: S80

Postby jpr.racing07 » Sat Jan 12, 2019 1:09 pm

Hi its not when i remove plug leads its when i remove the Plugs (ie no compression ) so engine turns faster then it synchronises
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Re: S80

Postby stevieturbo » Sat Jan 12, 2019 1:11 pm

You're really not helping with the lack of info here.

We still dont even know what engine it is ! Type/nature of crank trigger etc Nor have seen the scope traces to see how they appear etc.
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