Fueltech FT550 on SRT20DET

ONLY for ADVANCED technical discussion about the 240sx!
SRT
Posts: 2
Joined: Sat Oct 28, 2023 3:38 pm
Car: ???

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Hi, I am trying to get a base map configured but unsure of some of the questions. I hope someone can shed some light on this for me.

RPM sensor type - is it a Hall/VR with pull up or VR internal reference or VR differential.
Is the RPM sensor edge Falling etc.

Does anyone know the Crank trigger pattern, crank index position etc.

I think the Cam sync sensor is a Hall/VR with pull-up and Falling edge but not sure.

The engine has stock intervals.

Any help would be gratefully received.


User avatar
VStar650CL
Technical Expert
Posts: 11916
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

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The sensors are easy to identify, two wires is a VR and three wires is a pulled-up Hall. For VR's, differential is if both wires go to the ECU, single-end is if one of the two is grounded. I'm not a tuner and I'll let other people help you with the rest of it.

SRT
Posts: 2
Joined: Sat Oct 28, 2023 3:38 pm
Car: ???

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Thank you very much. That’s a great help. 👍🏻


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