NOS327

iTrader: (30)

this is probably discussed somewhere, I just couldn't find it..

I bought an '06 GTO LS2 to swap in my other chevelle. I ordered the main wiring harness for my aftermarket EFI for an LS2. Turns out GTO LS2 are b*stard motors that actually use 24x/1x sensing, which I've now been told are 12v, however my harness and whatnot is for 58x/4x "LS2" sensors which are 5v. I was just going to return my harness and order an LS1 harness, but some things are left to be desired there (1-wire knock sensors in valley vs. 2 wire in block skirt primarily, but also cam connector intended to be in rear and doesn't reach front cover), so it's not a slam dunk answer either.

My question is (probably a dumb one).. if I just stick a crank sensor for like an '06 vette LS2 that would have been 58x in my motor, will it properly read/interpret the 24x wheel?

Likewise, if I stick the 4x cam sensor in my front cover in place of the 1x sensor, will it also understand the "I" and "O" of the 1x cam gear?

This all occurred to me when the harness connectors wouldn't plug into my LS2 sensors (the features I call keyways in the connector don't allow them to mate), but when checked in the LS1 harness in my other chevelle, they connected...meaning that my GTO LS2 motor had LS1 sensors...

Anyway, if the sensors are just looking for spaces and no spaces, I don't see why I couldn't just put the 58x/4x sensors in place of my 24x/1x sensors since they are externally the same... I think. Please advise!

Thanks,
TJ

minytrker

iTrader: (13)

The easiest solution is to get the new harness setup for the correct reluctor wheel. They sell extension harness's for the map and knock sensors if you dont want to cut and splice. You can not just put in a different crank sensor and make it work.

sicksspeed

iTrader: (2)

You should base everything on the crank and cam sensor. the system needs to be able to use the 24x signal of the crank and 1x cam. I suggest you go over to the sticky in I think it is gen 3 internal. Section. Swapping or somthing.

sicksspeed

iTrader: (2)

It is the gen 4 section top sticky. Read that it may help make sense of what to do.

NOS327

iTrader: (30)

OK, I'll go take a look.

For reference, I'm using the Holley Dominator stuff. It's selectable which cam and crank sensors you are using. I'm not constrained by an OEM ECU that is specifically looking for certain signals. I'm simply asking if a 5V crank sensor (gray I believe, for 58x) will properly read a a 24x wheel as it goes by. The Holley LS2 harness will be providing 5v, so the sensor will be properly powered, just curious if the sensor will be counting teeth properly..

01ssreda4

iTrader: (96)

Return the harness.