Install EFI connection LSX PCM
#123
EFILive (http://www.efilive.com), HP Tuners (http://www.hptuners.com), or LS1Edit (http://www.carputing.com).
The LS1 PCM is recalibrated through the serial data line connected to the PCM...in other words through the OBDII diagnostic connector. An OBDII diagnostic connector is required (and included) for the 94-95 F-Body guys who are reworking thier own harnesses.
Cruise control remains functional for cable driven throttle cars after the LS1 PCM conversion.
A/C remains fully functional after the LS1 PCM conversion.
The LS1 PCM is recalibrated through the serial data line connected to the PCM...in other words through the OBDII diagnostic connector. An OBDII diagnostic connector is required (and included) for the 94-95 F-Body guys who are reworking thier own harnesses.
Cruise control remains functional for cable driven throttle cars after the LS1 PCM conversion.
A/C remains fully functional after the LS1 PCM conversion.
NOW LASTLY 2 QUESTIONS:
1.THE PRICE ON THE WEBSITE IS FOR A COMPLETELY NEW WIRING HARNESS, OR IS IT TO REWORK MY CURRENT HARNESS? I AM FOR SOME REASON QUESTIONING MY ABILITY TO PERFORM THE REWORKING OF THE HARNESS. IF IT IS FOR A NEW HARNESS, DO YOU OFFER AN OPTION TO REWORK MY CURRENT STOCK HARNESS?
2. I NOTICED YOU SAY YOU USED THE MOATED ROAD RUNNER TO TUNE A 396 LT1 AT TPIS. IS THE PURCHASE OF EFI LIVE OR HPTUNERS REQUIRED IN ADDITION TO THE PURCHASE OF THE ROAD RUNNER SETUP, (I.E. $599.00 FOR THE ROAD RUNNER+799.00 FOR THE EFI LIVE V2) OR WILL IT ONLY REQUIRE THE (I.E. 599.00 ROAD RUNNER SETUP + 199.00 EFI Live Realtime License)?
FOR KICKS ARE YOU WILLING TO GIVE THE NUMBER TO THAT TESTED SETUP, AND HIGH POINTS OF THE BUILD, LIKE COMPRESSION, CAM SIZE, HEADS AND STOCK INTAKE OR SINGLE PLANE.
THANKS
#124
The price for the harness is a completely new harness, the do offer a 'DIY' kit but after messing with my harness for a while the age of it made me decide I was better off just going with the new one.
You have to figure even the NEWEST LT1 harness is now 13 years old, taking it off reworking it and reinstalling really had me worried about broken/cracked wires and trying to pin down a short/dead wire.
You have to figure even the NEWEST LT1 harness is now 13 years old, taking it off reworking it and reinstalling really had me worried about broken/cracked wires and trying to pin down a short/dead wire.
#125
1.THE PRICE ON THE WEBSITE IS FOR A COMPLETELY NEW WIRING HARNESS, OR IS IT TO REWORK MY CURRENT HARNESS? I AM FOR SOME REASON QUESTIONING MY ABILITY TO PERFORM THE REWORKING OF THE HARNESS. IF IT IS FOR A NEW HARNESS, DO YOU OFFER AN OPTION TO REWORK MY CURRENT STOCK HARNESS?
2. I NOTICED YOU SAY YOU USED THE MOATED ROAD RUNNER TO TUNE A 396 LT1 AT TPIS. IS THE PURCHASE OF EFI LIVE OR HPTUNERS REQUIRED IN ADDITION TO THE PURCHASE OF THE ROAD RUNNER SETUP, (I.E. $599.00 FOR THE ROAD RUNNER+799.00 FOR THE EFI LIVE V2) OR WILL IT ONLY REQUIRE THE (I.E. 599.00 ROAD RUNNER SETUP + 199.00 EFI Live Realtime License)?
SECOND you should consider a wideband O2 sensor. We use an Innovate LM2.
The Moates Road Runner PCM is an optional component that requires a $199 license to use with EFILive.
Let's go back to that wideband O2 recommendation
A wideband O2 is very important to tune an engine. Now you could try to tune using feedback from fuel trims, but that's not a very good way to go about it. We don't offer tuning services because the weeks continue to be full with harness related work. We do our thing, and then let the tuners do their thing. However, when someone calls or emails to ask something like "My engine stumbles at 4,000 rpm and then dies. What could be wrong?" For me to help answer that question, I would first ask "What is the air/fuel when the engine first begins to stumble?" Thinking there is either a tuning issue or fuel delivery issue. Only a wideband O2 will tell you the air/fuel ratio.
FOR KICKS ARE YOU WILLING TO GIVE THE NUMBER TO THAT TESTED SETUP, AND HIGH POINTS OF THE BUILD, LIKE COMPRESSION, CAM SIZE, HEADS AND STOCK INTAKE OR SINGLE PLANE.
THANKS
THANKS
The engine made 530hp on the Super Flow dyno at TPIS. This is a 15hp improvement over the LT1 PCM and MSD optispark tested just before the LS1 PCM conversion on the same dyno. Sorry, I don't have the engine specs.
Last edited by S10Wildside; 02-19-2010 at 06:34 AM.
#126
That 396ci LT1 was just installed in a beautiful 1985 Camaro.
We're shipping the engine harness for the car today.
It will be featured in an upcoming (possibly the next) issue of Street Thunder magazine (http://www.streetmachineclub.com). It will definitely be worth getting a subscription to see the details of this car.
396ci LT1
EFI 24x Conversion
58mm Drive by Wire Throttle
T56 Transmission
We're shipping the engine harness for the car today.
It will be featured in an upcoming (possibly the next) issue of Street Thunder magazine (http://www.streetmachineclub.com). It will definitely be worth getting a subscription to see the details of this car.
396ci LT1
EFI 24x Conversion
58mm Drive by Wire Throttle
T56 Transmission
Last edited by S10Wildside; 02-19-2010 at 06:36 AM.
#129
wasn't there mention in another thread that you could go in and change the cylinder fire order with EFI live or hptuners so that there wasn't any issue with swapping wiring and having the ecm think it was adding or pulling fuel from the wrong bank?
Is this an option from the tuning side of things?
Is this an option from the tuning side of things?
#130
wasn't there mention in another thread that you could go in and change the cylinder fire order with EFI live or hptuners so that there wasn't any issue with swapping wiring and having the ecm think it was adding or pulling fuel from the wrong bank?
Is this an option from the tuning side of things?
Is this an option from the tuning side of things?
This PCM (GM# 12200411) was used in the 2001-2002 Express Van. That vehicle uses a Gen I SBC with single coil and distributor; not an LS engine. For proper firing order, GM did two things:
- When compared to an LS1 harness, injectors 2&3 and 7&4 were swapped at the PCM to fix the firing order. This gets the injectors to fire at appropriate times.
- When compared to an LS1 calibration, GM changed the Injector Bank Assignments table to assign the appropriate injector to each bank. This allows for fuel trims (or closed loop).
I'm taking the time to explain this because this is not a "hack". It is an appropriate way of fixing the firing order and closed loop operation...in GM fashion.
Last edited by S10Wildside; 02-25-2010 at 07:07 AM.
#131
Yes, but first let's back up a few steps and look at the LS1 PCM and take out the "LS1" part of it.
This PCM (GM# 12200411) was used in the 2001-2002 Express Van. That vehicle uses a Gen I SBC with single coil and distributor; not an LS engine. For proper firing order, GM did two things:
I'm taking the time to explain this because this is not a "hack". It is an appropriate way of fixing the firing order and closed loop operation...in GM fashion.
This PCM (GM# 12200411) was used in the 2001-2002 Express Van. That vehicle uses a Gen I SBC with single coil and distributor; not an LS engine. For proper firing order, GM did two things:
- When compared to an LS1 harness, injectors 2&3 and 7&4 were swapped at the PCM to fix the firing order. This gets the injectors to fire at appropriate times.
- When compared to an LS1 calibration, GM changed the Injector Bank Assignments table to assign the appropriate injector to each bank. This allows for fuel trims (or closed loop).
I'm taking the time to explain this because this is not a "hack". It is an appropriate way of fixing the firing order and closed loop operation...in GM fashion.
#132
S10Wildside or anyone else I am basically done with my conversion, but I still need plug wires. I thought I could get a standard LSX plug wire to work, but thats a no go. Looks like I'll need a tight 90 degree on the plug and a standard end for the LS2 coils.
Any recommendation on where to get the wires?
When I get done with this thing, I have a video of it up and running, should be pretty wicked
Any recommendation on where to get the wires?
When I get done with this thing, I have a video of it up and running, should be pretty wicked
#133
MSD 32079
http://www.msdignition.com/uploadedF...structions.pdf
Make your own set, use these alot for custom stuff. You just pick which end you need for the spark plug measure from there, crimp on the LS coil end and you are good to go.
Each length of wire includes a 90* end and a multi-angle end.
It is what I will be using for my 24x setup.
http://www.msdignition.com/uploadedF...structions.pdf
Make your own set, use these alot for custom stuff. You just pick which end you need for the spark plug measure from there, crimp on the LS coil end and you are good to go.
Each length of wire includes a 90* end and a multi-angle end.
It is what I will be using for my 24x setup.
#135
After every installation, we make our own using...
- MSD 3304 45 degree coil terminal and boot kit (quantity of 2 per package)
- MSD 8850 90 degree spark plug terminal and boot kit (quantity of 9 per package)
- MSD 34013 25ft length 8.5mm black wire
- MSD 35051 Crimp Tool
#139
Update:
After some debate, I decided to order a new harness. After reworking the majority of my old harness, I felt a little more secure with a brand new one. Would my old harness work, Probably, but its over 14 years old now, more of a piece of mind thing.
I have about a 3 week wait and its going on. I have a MSD plug wire kit, just have to cut them to length and install. Can't wait to get this thing going again, haven't drove it in over a year.
After some debate, I decided to order a new harness. After reworking the majority of my old harness, I felt a little more secure with a brand new one. Would my old harness work, Probably, but its over 14 years old now, more of a piece of mind thing.
I have about a 3 week wait and its going on. I have a MSD plug wire kit, just have to cut them to length and install. Can't wait to get this thing going again, haven't drove it in over a year.