CHT sensor extension, Curious, does it work? Who uses one? |
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CHT sensor extension, Curious, does it work? Who uses one? |
malcolm2 |
Oct 25 2016, 09:11 AM
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#21
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I want to cover all my bases here. I have purchased the new GB CHT sensor from 914Rubber to try.
So, I think I will buy a spacer from Brad Mayeur to have the option. From what he says it should: "Porsche 914/4 Cylinder Head Temperature Sensor Extension. This little device slows down the heating of the sensor and improves warm up drivability." I do have "warm up drivability" problems = Low idle RPM until the VDO CHT hits about 250*F. So it seems like my problems don't need the warm up to slow down, it needs to SPEED UP. (IMG:style_emoticons/default/WTF.gif) 914LTD.com Also found on RATWELL (scroll down to WORKAROUNDS)http://www.ratwell.com/technical/TempSensorII.html#parts |
pbanders |
Oct 28 2016, 06:06 PM
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#22
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
I never was worth a crap as an EE, I was more of a materials guy, so circuits really aren't my bag. What I'd love to figure out is if it's possible to do a totally passive circuit that has a single pot, where when centered, there's no effect on the resistance of the CHT as seen by the ECU. Turn it to the left, and parallel resistance is added, and a lower resistance than the current CHT value is seen by the ECU. Turn it to the right, and series resistance is added, and a higher resistance than the current CHT value is seen by the ECU. Multiple pots, ganging, whatever, not sure it can be done without active switching. I have a question in at a circuits group to see if it's possible, but if a REAL EE here in this forum can figure it out, please do so (IMG:style_emoticons/default/smile.gif) .
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