Lingenfelter L460065397 Lingenfelter TRG-002 58x Trigger Conversion Module v1.6 - Manual (Page 3)

Notes:
• Read these instructions before installing the TRG-002
• General Motors Gen III V8 engines use a 24X crank
trigger wheel and a reluctor wheel on the camshaft. The
24X reluctor wheel uses two different width notches (12°
and 3°) that are 15° apart. The Gen III camshaft position
sensor is mounted in the back of the block behind the intake
manifold.
• Early Gen IV V8 engines use this same 24X reluctor wheel
but then have the camshaft position sensor mounted in the
timing cover and have a single tooth camshaft reluctor built
into the timing gear.
• The newer Gen IV V8 engines use a 58X crank trigger
wheel (60 evenly spaced teeth with 2 missing teeth) and a
four tooth reluctor built into the timing gear.
• The TRG-002 takes the signals from the 58X based engines
and converts them to what the PCM or ECM for 24X based engines are expecting to see. This
allows the newer 58X engines to be installed in older vehicles that originally had 24X engines.
• The TRG-002 is designed to connect to the stock crankshaft (CKP) & camshaft (CMP) position
sensors on a Gen IV V8 engine equipped with a 58X crankshaft reluctor and a 4X camshaft reluctor
(timing gear).
• The 58X CKP sensor (GM part # 12585546) is gray in color and has a different connector key than
the 24X CKP sensor.
• The 24X CKP sensor (GM part # 12560228) is black in color and will NOT work with the 58X
crankshaft reluctor, so you cannot use the sensor from your existing Gen III V8 engine.
• Most crate engines or engines removed from other vehicles should already have the correct sensors
installed but it is important that you check to be sure.
• The camshaft sensor mounted in the front timing cover used on the 1X and the 4X timing gears is
the same for either gear (GM part # 12585545).
• Some early Gen IV V8 engines have the 24X crankshaft reluctor and the 1X camshaft reluctor
(timing gear). If you are using one of these earlier Gen IV engines in your LS1, LS6 or other Gen
III V8 equipped vehicle then you DO NOT need the TRG-002 trigger conversion module. See
Table 1 on pages 12 and 13 for information on what make and model year vehicles have what type
of crankshaft reluctor wheel. Be sure to go by the vehicle model year (in your owner’s manual or
indicated by the 10th digit of your VIN). Do not use the manufacturing date to determine model
year.
• NOTE - special installation instructions are required for the early 24X Gen IV V8 engine equipped
vehicles. This applies to all E40 ECM based vehicles such as:
• 2005 6.0L LS2 equipped Chevrolet Corvette
• 2005-2006 6.0L LS2 equipped Pontiac GTO
• 2005-2006 6.0L LS2 equipped Holden Special Vehicles (HSV) cars
• 2005-2006 5.3L V8 equipped Buick Rainer, Chevrolet Trailblazer & SSR, GMC Envoy, Isuzu
Ascender, Saab 9-7x
• 2006 6.0L LS2 equipped Chevrolet Trailblazer SS
• On these vehicles you will also need to use the supplied additional wiring extension adapter
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