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The Terminator
Engine/Tuning
All cylinders misfiring
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<blockquote data-quote="xtreme_exploder" data-source="post: 16231337" data-attributes="member: 153138"><p>Sensor disconnected: 4.77V at the computer</p><p>Sensor disconnected: 4.99V between vref and sig rtn</p><p>Everything connected: 3.00V at the computer, engine at ambient temperature</p><p>As you can see, all good there. I'm not having any IAT2 issues. I believe the reason the code originally showed up was the intake got hot enough to be outside the sensor's range, which is the equivalent to a low voltage input (hotter the sensor gets, lower the voltage). I believe that intake reversion from it running like trash and the lack of vacuum keeping the supercharger bypass closed, in turn causing supercharger cavitation/even more air heating, made the intake hot.</p><p></p><p>I've discovered that it's basically shutting down two cylinders on each bank (2 hot, 2 cool header tubes on each side). I got thinking and the way it runs is like when traction control engages when you spin the tires. I found that there's a diagnostic self test procedure for the instrument cluster. Running that, I got the following DTCs:</p><p>D043, invalid or missing data for traction control</p><p>D262, missing SCP message</p><p>I feel like I should get to the bottom of what those really mean before I do anything else.</p></blockquote><p></p>
[QUOTE="xtreme_exploder, post: 16231337, member: 153138"] Sensor disconnected: 4.77V at the computer Sensor disconnected: 4.99V between vref and sig rtn Everything connected: 3.00V at the computer, engine at ambient temperature As you can see, all good there. I'm not having any IAT2 issues. I believe the reason the code originally showed up was the intake got hot enough to be outside the sensor's range, which is the equivalent to a low voltage input (hotter the sensor gets, lower the voltage). I believe that intake reversion from it running like trash and the lack of vacuum keeping the supercharger bypass closed, in turn causing supercharger cavitation/even more air heating, made the intake hot. I've discovered that it's basically shutting down two cylinders on each bank (2 hot, 2 cool header tubes on each side). I got thinking and the way it runs is like when traction control engages when you spin the tires. I found that there's a diagnostic self test procedure for the instrument cluster. Running that, I got the following DTCs: D043, invalid or missing data for traction control D262, missing SCP message I feel like I should get to the bottom of what those really mean before I do anything else. [/QUOTE]
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All cylinders misfiring
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