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Hello,

I installed piggy back called as "DET3" (Digital ECU Tuner 3) to 2.7 from 2004. I have problem with Launch Control, activation input is on analog #2 as switch ON/OFF, activation RPM is on 3400 and cut off 3600 without any ignition retart.

Driving with switch OFF - no problems, no check engine and no diagnostic trouble codes, when switch is ON and I use LQ (I like to shoot at traffic lights) I have problems with: P0340, P0335, P1372 (ignore P0501) and sometimes car is going on emergency mode (max 3k rpm) on launch control check engine bliks almost every time and If I press too hard on gas pedal check engine show up and doesn't disappear and then emergency mode.

I use scheme as file attached, wrong wiring? Wrong setup?
Need help with this, I set up new connection with duraseals and still problems.
 

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The Hyundai ECUs don't like the crank signal modified without the cam signal. How much ignition retard are you doing? In my experience if you retard any more than 4 degrees it will cause the Hyundai ECU to freak out.
 

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any time the Check Engine Light CEL flashes, that indicates a bad missfire. Bug that is how your rev-limiter probably works. Need more influence on the stock ECM to make it calm down.
 
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