wiki.js/decoders/ChryslerNGC.md

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Chrysler NGC Decoder for engines with the Chrysler NGC pattern true 2021-10-12T16:19:05.254Z markdown 2021-10-12T16:19:05.254Z

Chrysler NGC (untested)

Overview

Decoder for 4-cylinder engines equipped with the Chrysler NGC pattern. Seems to be used on some Chrysler/Jeep/Dodge vehicles from 2002 onward.

This decoder has only been tested on a simulator, please notify speeduino maintainers if you have success or issues with it.

Tuner Studio Configuration

  • Trigger Pattern: Chrysler NGC
  • Trigger Angle: Should be set to 30 +- a few degrees for a stock setup. If both crank and cam sensors have reversed polarity -330 should work (for sequential).
  • New ignition mode: On is recommended as it gives a more accurate spark angle.

Trigger Signal

This a 36+2-2 tooth wheel paired with a 7 tooth cam.

The crank wheel has 2 normal LOW missing teeth where the opposite side has two HIGH missing teeth.

The cam wheel teeth are mirrored. One side has a long HIGH tooth and the other has a long LOW tooth.

ngc_4_cylinder.jpg