I am looking to buy a pretuned PCM for my LS1 swap, I don't feel like buying a PCM then shipping it to a tuner to have it edited, I'd rather just buy one all ready to go, plug and play. Anyone know where I can get one that is tuned for an LS1 swap or does anyone here tune them?


Actually I just found some on eBay from a company called Spare ECM. What options do I need to change in the PCM for this swap anyways? Here is their list:

- 1999-2000 LS1 Operating System Installed
- Eliminate VATS (vehicle anti-theft system)
- Rear O2 Sensors Delete
- Fan 1 Temperature On and Off Changed
- Fan 2 Temperature On and Off Changed
- Axle Ratio Changed
- Tire Size Changed
- Top MPH Raised
- RPM Limit Raised
- Diagnostic Trouble Codes Delete
- A/C Deleted
- EGR Deleted
- Air Pump Deleted
- Fuel Tank Pressure Sensors Delete
- Disable Torque Management (automatic)

 

VATS is the only critical function to make it run

Add to the list 8 cyl tach calibration. LS1s output 4cyl mode from the factory

 

I highly recommend spare ecm, they are a very good company and they know their stuff. I bought my pcm from them

 

i recommend spare ecm from ebay also they do a great job. just search their name on ebay then tell them how you want it tuned

 

Awesome, sounds like Spare ECM it is Thanks guys.

 

No problem, when I get home I'll send you the list of DTC's I had deleted. BTW are you keeping emissions or no?

 

nelson performance is very good at tuning and editing ls1 pcm's.

 

I have to pass emissions but I am deleting EGR and AIR.