Recent content by Supraman

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    Iphone, i called it.

    The iPhone is not intended or marketed as a business-professional product; it's a personal device. So no, I don't care to tell its features to your boss, regardless. By the way, it actually works great with Microsoft Exchange.
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    Iphone, i called it.

    Comparing Windows Mobile browsing to the implementation of Safari on the iPhone is the real joke, in all honesty. The engine inside the mobile version is nothing like desktop IE, and the rendering quality is much worse. It's hard to debate this in text--just go try one once the hype dies down...
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    Iphone, i called it.

    Thanks for the support. I'm really surprised how many people are out there who hate on the iPhone. It's funny, because if they think it is too expensive, they don't have to buy it. But it is very simple fact that the iPhone offers features that are either dramatically improved from any...
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    Iphone, i called it.

    Ric: I work for Apple. On the iPhone team. I'm serious; I have no less than two iPhones. Who says the OS takes up 700MB? I'm curious, because it doesn't. Not even close. Several of your other complaints are going to be fixed in software updates--of course. This device is positively...
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    heater circuit to power wideband?

    Well, I just got finished with the wiring. It was particularly unpleasant, mostly because of the maddening fact that I could not find a consistent 12V between any two wires in the O2 sensor harness. Nor could I find the ground wire--the lowest resistance to ground was about 1KOhm, IIRC...
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    heater circuit to power wideband?

    The car is a 1988 Turbo, 5 speed. The MAFT-Pro monitors Vf, but I'm pretty sure it doesn't assert any signals onto the line. Predictably, Vf remains constant at or very near 0V, signaling open-loop in this case.
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    heater circuit to power wideband?

    Wow--yeah, I see what you're saying. I couldn't believe it at first either, when I read about it. But, I assure you, my car is not turning on the CEL, which I know is operational. The only warning light on my dash is the darned brake-light out warning, which came on when the center mounted...
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    heater circuit to power wideband?

    Yes, the stock narrowband sensor wire is floating. I researched it before deciding to force open loop in this manner, and apparently, no code is thrown if the sensor wire dies but the heater circuit is still operating. And indeed, I see no codes. The ECU is definitely operating in open-loop...
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    heater circuit to power wideband?

    Yes--exceedingly crude, indeed, but it has been effective enough to allow me to get by without worrying about the wideband wiring for quite some time now. The batteries last at least a dozen hours of drive time, and I have an automotive battery charger that can recharge them pretty...
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    heater circuit to power wideband?

    I'm already doing this, but I have yet to properly wire up the power to my wideband. As the + supply to my cig lighter can't handle the wideband (the ground path is fine, as I have tested an alternate + supply returning through the cig lighter ground), I have been running the wideband off of...
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    MPG?

    The gearing definitely determines RPM, of course...but RPM is not nearly as significant as you would think when concerned with fuel economy. This is a good article that discusses the factors that effect fuel economy, with real data, including varying RPM: The Factors Affecting Fuel Efficiency.
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    MPG?

    Guys...do you not know how you're supposed to calculate economy?! Please do not use the Super Monitor, or the gas gauge. Who knows what the Super Monitor is doing...and it's way off for anyone with upgraded injectors. The gas gauge is incredibly inaccurate, too. It's very simple to do it...
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    MAFT-Pro: Part Throttle AFR Tracking.

    I'm wondering who here has used the MAFT-Pro for its PT tracking functionality. It requires that the stock ECU operate in open-loop at all times (accomplished by cutting the narrowband O2 signal line), and relies on the MAFT-Pro to monitor a wideband signal and manipulate the AFM signal that...
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    Mysterious AFR issues at cruise.

    Well, the car is back to health, after I reconnected the stock narrowband signal wire (having cut it earlier to see if a simulated signal from my wideband would fix the problem). Continuity to the ECU is good; I did not check it before. It did seem like an O2 problem all the while, though it...
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    Mysterious AFR issues at cruise.

    Last night I wired up the LM-1 to the MAFT-Pro, and set all of the tracking features to be triggered by TPS greater than 4.9. My max WOT TPS voltage is 3.33, so that should disable it. I don't think they were 'on' before because the configuration was set to no wideband, so that should disable...