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  1. duffbuster243

    CV Axle Brands

    Rockauto.com is my go to for all my parts, I do 100% of all my repairs on my 2013 cx-5 with 173k and my 2014 mazda6 with 193k. If they don't have the part, I'll cave and go to the dealer. I avoid the auto parts stores, mostly the same re-boxed parts with a minimum 50% markup on price. I'm...
  2. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    Glad to hear you got that worked out. Did you get a tune squared away? Mine has been solid and running great.
  3. duffbuster243

    2002 Protege5 Crank No Start

    The fuel pump doesn't prime with key on with these cars, It won't turn on until the ECU detects the engine cranking by the Crankshaft position sensor. You can test this by removing the pressure line from the fuel rail and routing it into an empty fuel container, crank the engine for a couple of...
  4. duffbuster243

    Mazda Protege 1.6L Build

    Nice Build, not many putting work into the 1.6 ever, even though it's a pretty stout engine. You should really ditch that SSAFC and move on to standalone though. I've managed to work out the kinks and have My MSP running on a Speeduino (Cost is about the same as an SSAFC), it is a night and day...
  5. duffbuster243

    Another Protege5 thread

    post up some pics when done
  6. duffbuster243

    Another Protege5 thread

    You may just need an oil restrictor in the oil pressure feed line. Many of these cheap turbos don't have them built in, too much oil pressure will leak past the oil seals in the turbo.
  7. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    I would reach out to AEM and have them check the calibration on that Wideband Gauge. Especially if it is idling 100% smooth. I would say maybe you have a bad injector but you usually won't have smooth idle.
  8. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    Sounds like you have a lot going on there, but from my experience with batch fire injection on the fsde is that it wouldn't idle happily anywhere above 14.2afr. What kind of Wideband do you have? Most widebands I've seen don't usually report anything above 22.5 afr since it's not within any...
  9. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    Definitely get the Wideband working properly first, It's going to be basically impossible to get your afr anywhere close without it. you can try loading up my stock tune. It was running great on stock injectors for me.
  10. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    I swapped in a cam wheel from a 98-02 626 with the fsde, it has a single tooth cam pickup. I had one laying in the parts bin from one of my past engine swaps. you can also just grind two of the teeth off the stock cam wheel if you wanted and run single tooth.
  11. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    Quick Update. I had a lot of trouble getting Sequential Injection to work. I would get a random misfire at idle speed below 1000rpm. It turned out to be the Variable Reluctance style camshaft position sensor not providing a reliable signal at low engine speeds. I decided to switch to a Hall...
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    HYN_3931038050.webp

  13. duffbuster243

    For Sale SSAFC and Mazdaspeed Protege Fog Light Deletes

    yes, I still have the fog deletes.
  14. duffbuster243

    Mazdaspeed Protege Build - Feels Good To Be Back

    I have a Turbolife FMIC, has some rust on the support bar, but can easily be sanded and re-painted. It's missing the last 90 degree pipe that goes to the throttle body. I've had this sitting in my garage for 2+ years now, It was a local Facebook Market find that I couldn't see get lost or parted...
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    IMG_20220629_192047.webp

  16. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    The battery voltage swing is going to have a huge effect on how the car runs, especially if you don't have the injector dead times 100% perfect. The speeduino will be dramatically adjusting the fueling to match the voltage change. Definitely sounds like a ground issue, check the battery terminal...
  17. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    Send me the log and the tune, 12v jumping around could happen if your idle is jumping around and the alternator is varying it's charge, but it could also be the ground. I would verify voltage at the battery with a multi meter and see if it's also jumping around there. PM me and I'll send you my...
  18. duffbuster243

    Mazdaspeed Protege Build - Feels Good To Be Back

    The platform is still quite popular on fb unfortunately. In my opinion fb sucks compared to the organization of forums, it's near impossible to search and find the information you need and it's full of scammers.
  19. duffbuster243

    Guide Run your Mazdaspeed Protege on a Speeduino

    what does your tune look like? You can send it to me and I can take a glance at it when I have a moment. Also, did you run a datalog and check for sync loss?
  20. duffbuster243

    Mazdaspeed Protege Build - Feels Good To Be Back

    If you have the ability to weld, that's definitely your better option, less paint work and you don't have to worry about matching paint since it's not on the outside of the door. Black paint would even suffice.
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