Speed Density, Valet Mode, 2-Step, alpha-N. No Diesel DSP
Hey guys. I thought I would take a few mins to let you guys know that I will be testing out this new OS a little bit for Ross in the upcoming...
There was a problem identified in the custom O.S#3 for all 2003+ vehicles that was causing the ECT enrichment table to have no effect on final...
What is this thread for? This thead is to cover frequently asked questions about PCM Operating systems (OS). This thread will be monitored and...
Hey there, new to tuning LS1's. Have got an twin turbo LS1 powered jetboat in my shop. I have removed MAF sensor, and fitted a 3 bar MAP sensor. I...
I've tuned for both MAP(with MAF disabled) and MAF(400 RPM up) and the truck runs good either way. In fact I really cant tell any difference between...
I'm doing a 4l80 swap to my 2005 1500 Sierra , can I do a custom operation system after doing the segment swap for my stock tune. My setup is as...
When you run SD how do you keep the trans from going to full pressure??
As the title suggest, I just want to see if I am on the same track as others on here. Heres mine :nixweiss: ...
I am getting ready to do my first COS on a Supercharged 03 Vette. The Full Flash section in the manual states that the PCM should be removed from...
This may be a simple question, but is it right that the only new table/parameters I now have after apply the 2bar OS upgrade is the boost VE table?...
I'm tired of killing your search function. I think it is wimpering in the corner in pain... Is there a COS for the thread title? Token Yank,...
Hi, I have a couple questions about COS 3 for a low boost (5-6 psi) application. - Can you keep the stock MAP sensor? - Can you still use the...
Hey guys I went to flash my stock PCM with my current tune from Wait4Me performance, and come to find out I have two different OS. The stock OS is...
how do i get the case to work on the scanner with a cos 3 for my lq9 402. i hit the case button and nothing happens. if i go to use anything it all...
Is there a COS available for the VZ holdens running the LS1 1MB pcm? I had a feeling there was, just want to clarify.
Hi, I am just starting to try and get my head round the tuning process. Attached is my current tune (Professionally Done) and a log, I would...
I used a stock file from a 2002 Camaro 4L60E 5.7L and copied all my old values over. What did I miss here? There are a few weird things...
I switched everythng over to cos 5 and now the car goes into reduced power mode if a I put the car under load. Any suggestions would be greatly...
i have stft problems seem to try and deduct fuel past 30% wont idle etc i thought about it an came up with maybe the source of the problem *** my...
Courtesy of "Shep photography" Matt's everyday work ute ! Holden VZ , 6.0 Ls2 , cam, 2800rpm convertor , exhaust and APS air box . Matt's ute...
I have tried two different COS3s and I'm getting a rough idle and any throttle tip in kills the engine? I started out with OS 12212156 (COS...
Just thinking ahead here. I am planning out a turbo 6.0l build. I plan on using the stock ECM and EFILive of course. I have been planing on using...
Ok guys I need a little help. I missing something here that is causing the AFR to go lean @ 4000rpm with 30% throttle. My log shows that commanded is...
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