Hey guys, iver been meaning to post this up for a while, i installed a cobalt turbo gauge into my 04 ion redline. it functions and works, but the boost reads 5psi too high. so i am wondering if anyone has done this same swap into a ss/sc and had the same problem or not. if you did, did you just need to change out the boost solenoid?
any good ideas or concrete information is welcome
-Sean

 

you need to buy the 3 bar map sensor that the SS/TCs have to make it work

 

and just bolt that ish into the stock location and thats it? or do i need to get tuned to it and all?

 

im honostly not to sure, i dont know anyoent hat has actually done that yet

 

Alright ill talk to some people about it and see what they think. Thanks for the info sir

 

To be perfectly blunt, this is wrong. I say this because I've tried it and it failed, lol.

The S/C and T/C gauges are physically the exact same unit, save for the face. The difference is in the signal. The T/C sends its signal from the BCM (assumed. Its definitely not the PCM though), while the LSJ sends its signal directly from the PCM via circuit # 891 aka Pin 10, C3 connector on the LSJ's P12 PCM. Thus far nobody has come up with a way to modulate or alter the signal to make the T/C gauge work in the LSJ or vice versa.

To compound the issue, the LSJ's PCM is only 16-bit, so it can theoretically only send a signal equal to 255kpa. Since 30psi far exceeds 255kpa, even if the LSJ's programming could be modified to accommodate the LNF gauge, it could still only display up to about ~22.5psi.

I've talked to Bill@HPT, Vince@Trifecta, and another promising source. All of them have said it is possible, but the only one that has actually come up with anything is Vince. He has been so busy that testing this will take a while though. Rest assured this is something I have wanted for a LONG time, and will do my best to keep pressing the issue until we get it, even if the gauge only displays up to 22.5psi.

 

hmm i thought 07 pcm are 32bit......

 

Just get an Autometer Mechanical Boost Gauge. Cheap and no hassle. Plus they respond and display a lot more accurately.

They are.

 

^^^ THIS.. i just installed mine yesterday and its awesome...

 

well vince is local to me so maybe we can get this figured out sometime soon. vince, however is extremely hard to get a hold of..

 

i need to swap out my boost guage as well! tvs has just a little bit more power than m62 lol!

 

Nope.

 

anyone put the turbo computer into the lsj yet? big retune obviously but not sure what stops it from happening? any deep dark secret? the direct injection is still the same number of injectors, triggered the same way so why cant you just swap the brain over and get a better computer that can follow the numbers all the way up?

 

My mechanical gauge is always 10 off from the interceptor at idle but right around the same at wot.

 

Get an Autometer Mechanical Gauge. They're inexpensive, American made, very accurate, and extremely quick response. Give true meaning to the phrase "instant boost". It was an amazing difference when I put mine in with my M62.

Yeah, I'm pretty sure he's right. Not all 07's were 32bit... but I'm pretty sure that a large majority of them were.

Interceptor reads PSI all the time... not in/Hg like the Boost Gauge. -9psi is -18in/Hg. (- # psi X 2) = - # in/Hg

 

awesome didn't realize that