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timmy264

Member

• Mar 3, 2013

• #1

Hi
I'm fitting a multipoint sequencial LPG system to my 1998 4.0se but can't find which wire is the rpm ref/engine speed from the ecm. I've looked through rave but Can't find anything. Can anyone help?? Thanks

 

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forthbridge

Active Member

• Mar 4, 2013

• #2

Mr Gorsky helped me out with a similar request - see my inertia switch wiring thread, might be worth dropping him a line?

 

MrGorsky

Well-Known Member

Full Member

• Mar 4, 2013

• #3

Is it a GEMS? 1998 should be a GEMS right?

If it is...

Pin 23 on connector C505 (the black 36 pin one on the engine ECU)

Colour is listed in the book as Grey.

You'll have to make sure you set your LPG software for 4 pulses a revolution engine speed or it will read wrong.

We were talking about this on Forthbridges's thread here.

 

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Last edited: Mar 4, 2013

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Mar 4, 2013

• #4

Yep THOR was 99 onwards I believe.....

 

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timmy264

Member

• Mar 5, 2013

• #5

Hi
Yes it's a gems. Thanks for the replies. I'll be able to finish it off now