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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: gregsdart]
#1376644
01/30/13 10:30 PM
01/30/13 10:30 PM
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Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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One thing I've always found very attractive about using an OE PCM is the fact they have the ability to store trouble codes & freeze frame data.. If something is wrong you know where to look, no aftermarket PCM that I'm aware of has that capability... The GM LS PCM has the ability to control the transmission, fans, traction control, boost control... All can be switched on or off within the program.... GM gave the programmer the ability to control everything from a mild daily driver to a very serious race package.... To bad Chrysler doesn't do stuff like that...
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: gregsdart]
#1376645
01/30/13 10:53 PM
01/30/13 10:53 PM
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Joined: Jan 2008
Posts: 4,255
Canada
WO23Coronet
master
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master
Joined: Jan 2008
Posts: 4,255
Canada
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Quote:
Any chance this setup would work with stock Gen III Hemi dual plug coils? I am looking at two Edelbrock 500 cfm carbs and the MSD controller currently, at a cost of about $1300. It would be nice to save some $$ and get a good tuneable EFI!
Mopar Action did an article a couple of issues back about a guy that sells a kit to LS a Gen III Hemi, I think it was around the $1300 mark going by memory
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: topbrent]
#1376646
01/30/13 10:58 PM
01/30/13 10:58 PM
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Joined: Nov 2008
Posts: 671
Wisconsin USA
Bill MeLater
mopar
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mopar
Joined: Nov 2008
Posts: 671
Wisconsin USA
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Quote:
Rich Nedbal of Mopar Engines West / http://www.fastmanefi.com/ does some neat EFI work. Although not based around the GM PCM, his FAST XFI setup does illustrate some very clean work to use as an idea.
M1 intake with LS2/LS7 shorty style injectors
 
Supercool .....But really way off track in regards to budget and do it yourselfedness (Sp?)
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: SLOW67]
#1376652
02/01/13 09:48 AM
02/01/13 09:48 AM
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Joined: Apr 2007
Posts: 951
Temperance, MI
prochargedhemi
super stock
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super stock
Joined: Apr 2007
Posts: 951
Temperance, MI
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Quote:
Ok so back to the wiring....lol How are you going to feed the ECM a VSS signal from the mopar trans? Also Can I remove all the wires the used to go to the chevy trans? BTW I traded for a 24x/1x harness so I don't have to reengineer the cam signal problem
I know the older dodge ramcharger trucks has a vss that screwed on to the speedo gear, and then one off the rearend housing
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: SLOW67]
#1376653
02/01/13 11:32 AM
02/01/13 11:32 AM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:
Ok so back to the wiring....lol How are you going to feed the ECM a VSS signal from the mopar trans? Also Can I remove all the wires the used to go to the chevy trans? BTW I traded for a 24x/1x harness so I don't have to reengineer the cam signal problem
You have two options with the VSS, use a mechanical to electronic adapter that screws on the speedo drive at the trans from somewhere like Dakota Digital. OR.....what most people do is just turn off the VSS in the PCM with your tuning software and remove those wires from the harness. Then you just use a manual transmission base tune so that the PCM isn't trying to talk to the transmission and remove all the transmission wiring from the harness as well. This is the prefered option in my opinion.
When I get time I will write up a whole wiring post covering all the wiring part of this swap, including everything that should be removed from a stock harness and a pinout chart too. 
I truely think the 24x/1x reluctors with a 411 is the easiest way to go too. 
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Quicksilver440]
#1376655
02/01/13 02:39 PM
02/01/13 02:39 PM
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Joined: Oct 2007
Posts: 3,893
Oregon
hooziewhatsit
master
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master
Joined: Oct 2007
Posts: 3,893
Oregon
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Quote:
Quote:
Ok so back to the wiring....lol How are you going to feed the ECM a VSS signal from the mopar trans? Also Can I remove all the wires the used to go to the chevy trans? BTW I traded for a 24x/1x harness so I don't have to reengineer the cam signal problem
You have two options with the VSS, use a mechanical to electronic adapter that screws on the speedo drive at the trans from somewhere like Dakota Digital.
Would this work for that?
http://www.summitracing.com/parts/sum-g2887-1
Edit: it does appear that DD sells them cheaper than summit.
Last edited by hooziewhatsit; 02/01/13 02:42 PM.
If you ever find yourself in a fair fight, your tactics suck.
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: Twostick]
#1376661
02/03/13 06:25 PM
02/03/13 06:25 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
Any chance this GM PCM can be tricked into controlling a Mopar OD trans?
Kevin
I assume you are talking about lockup and shifting OD ?
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Re: My 440 EFI- Coil on Plug & LS PCM ignition project
[Re: SLOW67]
#1376663
02/04/13 03:01 AM
02/04/13 03:01 AM
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Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
Quicksilver440
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:
Another question....how do you setup the injectors and ignition since the LS has a different firing order than chrysler?
Just swap injector and coil pins 2&3 and 7&4 at the pcm connector. And then in your tuning software, assign the proper firing order in the injector bank tables so the PCM can properly report codes/misfires, etc.
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