Pete walsh

Hi and hello,

I have a ls3 that Im sticking in my rx7 and I dont know what kind of ecu came with the ecu i.e. E28/40/67 etc.

can somebody enlighten me.

cheers

Ryne @ CMS

iTrader: (10)

it is a e38 ecu, there is no e28

See5

iTrader: (53)

You can run it with most anything. Just need know the reluctor 24 or 58x ?

Project GatTagO

iTrader: (7)

All LS3s are 58 tooth.

Andrew

Pete walsh

cheers so LS3's come with E38 ecu's as standard?

See5

iTrader: (53)

If it is a stock GM LS3 it should have a 58x reluctor and the 08 LS3 Vettes have an E-38.
It is more common and easier to use an adapted E40 however. The PCM needs to have many IOs disabled and the harness simplified.

71CamaroLS1

As See5 suggests, you can make the LS3 work with earlier (97-04) ECUs by swapping the reluctor wheel and cam gear (24x reluctor wheel, 2005 LS2 cam gear).

If you don't swap the reluctor wheel, there is a version of the E38 controller that GM has released that is set up explicitly for retrofit swaps, complete with harness and DBW throttle pedal:

http://www.gmperformanceparts.com/Pa...roller_Kit.jsp

Just over $1K US, pretty inexpensive all things considered.

LSX Wizard

Actually, the GMPP kit is based on an E67 controller.

And it works very well.

alocker

iTrader: (10)

An E38 or E67 will work with the 58x motor. It was my understanding that an E40 will only work the 24x motor.

The E38 is becoming pretty easy to find since they come in a ton of newer (07-up) GM cars. Your tuner should be able to get rid of all the excess junk pretty easily. Actually I will have one available shortly if your interested.