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Thread: what ecu in a 04 ctsv? ecu swap?

  1. #1
    runsfromdacops is offline Cadillac Owners Fanatic
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    what ecu in a 04 ctsv? ecu swap?

    >hey guys im tyring to find out what ecu code comes in my o4 ctsv stock. any one know off hand?

    also im having some problems trying to get my car tuned on a 3 bar tune. any one know if i can just swap out the stock ecm to one out of a new car that allows 3bar tunes and still have all the stuff in the car still work like the nav and traction control?

    need help stat guy im running out of summer her fast lol

    -alex


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  3. #2
    ichpen's Avatar
    ichpen is offline Cadillac Owners Connoisseur
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    Re: what ecu in a 04 ctsv? ecu swap?

    Oh my. Wow there.

    I don't understand what you mean by ecu code? You mean check engine light or you mean ecu type?

    You should never do an ecu swap for a 3 bar tune. You need a 3 bar map sensor to begin with, a 3 bar OS and a good tuner. Start there.

    Why do you need a 3 bar tune anyway? Are you running a supercharger beyond 15 psi?

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    runsfromdacops is offline Cadillac Owners Fanatic
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    Re: what ecu in a 04 ctsv? ecu swap?

    the ecu code wolud be what ecu number came in the car. the stock ecu in my car with a hp tuners tune only allows a 2 bar sd tune. i need a 3 bar tune that they dont offer for my ecu.
    i have the the 3 bar map already and a tuner lined up to tune it but it looks like im going to have to do a efi live tune, or a ecu swap to one that allows a 3 bar tune

  5. #4
    RyRidesMotoX is offline Cadillac Owners Enthusiast
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    Re: what ecu in a 04 ctsv? ecu swap?

    I had the option of tuning a 3BAR MAP sensor on my turbo cobalt with HP tuners. You need to get the proper MAP sensor first, then HP tuners can program the computer to properly read it.

  6. #5
    runsfromdacops is offline Cadillac Owners Fanatic
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    Re: what ecu in a 04 ctsv? ecu swap?

    hp tuners DOES NOT offer a custom os with the 3bar option for the ctsv. they do for most cars but not for the ctsv.they only offer a 2 bar OS for the ctsv ecu

  7. #6
    RyRidesMotoX is offline Cadillac Owners Enthusiast
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    Re: what ecu in a 04 ctsv? ecu swap?

    Did you email HP support? I found your thread on their forums lol... either way

    It looks like you might find some help in these threads:

    http://www.hptuners.com/forum/showth...light=3BAR+MAP

    or

    http://www.hptuners.com/forum/showth...light=3BAR+MAP

    Looks like you need to start form your stock file, HPT can convert the stock file to a 3bar file then you can make changes from there from what it looks like anyways. I am more experienced with the LNF motor tuning in my cobalt though so take a look before you trust me on this. I'm just trying to help out.

  8. #7
    NC-V is offline Cadillac Owners Fanatic
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    Re: what ecu in a 04 ctsv? ecu swap?

    Just curious, but what kinda setup are you running to need a 3 bar map?

  9. #8
    ichpen's Avatar
    ichpen is offline Cadillac Owners Connoisseur
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    Re: what ecu in a 04 ctsv? ecu swap?

    Quote Originally Posted by NC-V View Post
    Just curious, but what kinda setup are you running to need a 3 bar map?
    Likewise. There's a lot of drawbacks to going up to 3 bar. You lose a lot of resolution and unless you're running a turbo with 20psi+ boost you really shouldn't go there. Anyway, your decision.

    HPT is pretty crap when it comes to 2+ bar OS support for our cars. I suggest you find a tuner with EFI.

  10. #9
    runsfromdacops is offline Cadillac Owners Fanatic
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    Re: what ecu in a 04 ctsv? ecu swap?

    back from the dead. im still looking to see if anyone has more insite on this.

    if i could get a 3 bar OS to work on our cars it would still have 5kpa resolution just like the 2 bar tune does. it will just be a bigger map so im really not loseing anything.

    as for the need to have a 3 bar os i think i defintly do need it. i have a build thread on here now so you guys can see why.
    im shooting for 1000whp on a rear mounted twin turbos setup. i dont think ill hit my goal on 15psi of boost

  11. #10
    rand49er's Avatar
    rand49er is offline All V1s should be maggied.
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    Re: what ecu in a 04 ctsv? ecu swap?

    Butt turbos. Hm-m ...
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels, plus a couple more. Mustang dyno'd at 472 RWHP/411 RWTQ.

  12. #11
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    Bacon V is offline Cadillac Owners Fanatic
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    I sure hope this isn't a street car - 1000hp well be like driving on a skating rink.

    What motor/drive train combo are you running?

  13. #12
    runsfromdacops is offline Cadillac Owners Fanatic
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    Took her out on the street for a little fun on wg 5psi tapering to 2psi up top


    Last edited by runsfromdacops; 01-15-13 at 07:07 PM.


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