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  1. Modded d16y8 plug fouling

    General Tech
    Lucky bastard. Lmao. If only we could tune the obd2 like the obd1, then I’d be set. I’ve got 3 p2p ecu’s. 2 manual 1 auto. I really need to try n sell the spares but nobody’s needs one unless theirs takes a shit. How easy is it to install a s300 onto one of these ecu’s? As it stands it’s...
  2. Modded d16y8 plug fouling

    General Tech
    Yeah let me know what ya find out. But the way I figure it, the operating range of the tps % is between 10-90%. This will vary slightly from car to car, especially with different manufacturers. But being that our tps’ are set from .5v-4.5v, on a 0-5v system, The “dead zone” that the ecu should...
  3. Carb accelerator pump

    Engine Building
    That should be it there.
  4. Carb accelerator pump

    Engine Building
    I’m not familiar with the carbs on these cars, but usually the accelerator pump is gonna have a vacuum line attached to it. If it has multiple, it’s usually the one with the biggest line.
  5. Modded d16y8 plug fouling

    General Tech
    Well I’ve pretty much ruled out all my sensors at this point. I voltage checked the map and iat sensors already, they’re operating within normal parameters. The coolant sensor checked out good as well as the tps. Getting my hands on a stock tb probably isn't worth it at this point. My original...
  6. Modded d16y8 plug fouling

    General Tech
    Yeah they are. Stop screw is backed all the way out and the cable will pull it all the way. Tried pulling the stop screw out more but The TB won’t adjust any farther than it is now.
  7. Modded d16y8 plug fouling

    General Tech
    So upon checking the TPS, either way I adjust it, it won’t read 0% and 100% at the same setting. But free from the TB it will. The TB doesn’t have enough movement to send the sensor through it’s whole range. Is there a way to adjust that?
  8. Modded d16y8 plug fouling

    General Tech
    I might need to take away about 1/3 of the material that’s there to make it work. I’ve got drawers full of nuts/bolts/washers so I can make anything that I need to get it mounted. Ok I’ll check it and see if I can get it to zero out first. I’m not one to normally just say try and fix something...
  9. Modded d16y8 plug fouling

    General Tech
    Soooo I just checked my TPS. And it’s off. It’s reading about 10.5% throttle fully closed. But I can’t adjust it anymore unless I drill out the adjustment slots. I think I remember having this problem when I installed it where I couldn’t get it to the exact voltage because it was already...
  10. Modded d16y8 plug fouling

    General Tech
    It’s not a stupid idea at all dude. But you’re right it usually is small stuff that causes problems like this. And yeah I calibrated the tps when I swapped the TB’s out. But I’ve had one fail on me and one got smashed pulling the motor since then, so I’ve had to switch them a few times. It’s...
  11. Modded d16y8 plug fouling

    General Tech
    So my wide band came in today and I installed it and took it for a drive. It seems I’m running lean at about 1/4 throttle or less, except for idle, and rich anything above 1/4 throttle. 1/4 throttle or less I'm between 15.5-16:1 and about 11.5-12.5:1 for anything above 1/4. Haven’t tried...
  12. D16Z6 N/A Build Opinions

    Engine Building
    Valve spring and retainers aren’t really needed unless you’re planning on upping your rev limiter. If you plan on keeping it set to the stock limiter, stock springs and retainers should do just fine. I have stock ones on mine with a comp cams quicktyme 105100 stage 1 and they do just fine...
  13. Modded d16y8 plug fouling

    General Tech
    So after driving about 40 miles today I didn’t notice any breaking up except while I had the a/c on. With it off it wasn’t doing it, but it’s still pretty sluggish down low. And I smelled fuel when I came to a stop a couple times so I’m pretty sure I’m running rich. I also ordered a wideband...
  14. Modded d16y8 plug fouling

    General Tech
    Yeah I’ve read up on that trick with the plug non foulers. But I’m hoping to go obd1 within the next few months so I’ll probably forgo doing it. I can live with that damn 0420 code for now. That is the nice thing about Florida. Shit if they ever decided to enforce emissions testing down here...
  15. Modded d16y8 plug fouling

    General Tech
    Awesome thanks for the info! Was thinking about picking up an aem wideband off of Amazon. Figured that would give me the best results. Ok cool so I’ll just remove the o2 sensor from the test pipe and place it there. Any advice how to keep that pesky catalytic deficiency code away? I know they...
  16. Modded d16y8 plug fouling

    General Tech
    And no I’m not in the artic lol. I’m in Florida
  17. Modded d16y8 plug fouling

    General Tech
    Did a compression test the other day, all 4 holes tested in the 180’s. Valve lash is perfect. Mechanical timing is spot on but I’ll recheck the ignition timing just to be sure. Cap, rotor and wires are all brand new. Pretty sure the injectors are good. I tested them during the rebuild and they...
  18. Modded d16y8 plug fouling

    General Tech
    Also I’m running ngk vpower zfr5f-11 and a .44 gap. (The stock plug and gap for this engine) and it’s throwing a cel code for catalytic deficiency (cat delete) and iacv (high idle, not surging).
  19. Modded d16y8 plug fouling

    General Tech
    So I’m having issues where my plugs foul after about 30 miles of driving, and cause the car to break up in the low to mid rpm range and getting less than stellar mpg. I believe I’m running too rich because of the major carbon build up on the plugs. Its a fresh rebuilt y8 with with less than 1500...
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