Our EFI 24x™ crankshaft reluctors generate a 24x crankshaft signal that is commonly used with GM Gen III LS-Series PCMs. Also supported by many aftermarket ECUs. The EFI 24x™ line of products is the most popular solution we offer.
Our EFI 58x™ reluctors generate a "60 minus 2" or 58x crankshaft signal that is commonly used with GM Gen IV LS-Series ECMs. Many aftermarket ECUs have excellent support for this 58x crankshaft signal.
This 3x crankshaft signal is commonly used with 1996-newer GM Vortec PCMs. For engine conversions, we recommend using a 2001-2002 GM# 12200411 PCM with 4.3L V6 calibration. For 4.3L V6 Chevy engines only.