2003 wrx engine swap with sti - Page 2
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This is a discussion on 2003 wrx engine swap with sti within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Well, I wasnt able to get it started. It cranks but its not getting spark for some reason. Missed something ...

  1. #16
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    Well, I wasnt able to get it started. It cranks but its not getting spark for some reason. Missed something somewhere. Yay.

    I think the ECU will work just fine though with the JDM engine. The ECU was was able to recognize engine code errors with my cobb accessport. I deliberately pulled wires apart that I had already connected to see if the ECU picked up on it.

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  3. #17
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    Finally got it all put together and running. Had to do some researching to find out why I wasn't getting any spark. Turns out JDM motor can have a different way of different way of reading the crankshaft sensor and camshaft sensor. This means you must either use your USDM camshaft gear and crankshaft gear, or use a JDM ECU. As soon as I swapped in my old USDM gears the engine fired right up. It had been about a year since I last heard my 03 sooby and it was a welcome sound!

  4. #18
    Pro Manscaper Mikie13's Avatar
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    At least I get to say that I was right

    Congrats on getting it fired up! When are you getting tuned?
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
    2012 Lightning Red WRX Sedan
    ProcessWest TMIC Cobb SF Intake w/airbox Invidia Catless Downpipe Invidia Q300 Catback Kartboy Short Shifter
    OpenSource tuned by: Matty @ WTF Tuning

  5. #19
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    Thanks man and yes, you were correct . I have to fix some radiator issues, but will tune it soon after. I was told by a guy who knows mountains more of tuning information than I do, that I may of had a bad tune which is why my engine failed to begin with.

    I have a cobb accessport and was running it on the stage 2 map with 93 octane. The car was originally tuned to this in California and now I live in Colorado (4000 ft+)...dunno if that makes a big difference or not. Is getting it professionally tuned a better idea?

    Current mods are: front mount intercooler, invidia headers/downpipe with no cats, turbo back exhaust, cold air intake
    Last edited by mzeek; 09-23-2013 at 11:27 AM.

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