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flightlead404 flightlead404 is offline
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Join Date: May 2015
Posts: 798
Very frustrating morning. Good news, new pressure sensor is working. I suspect the 12v would have as well. What I found was when its just dangling in the air it oscillates between 0 and infinity. Both did this. When when there's some pressure above atmospheric on it it seems to read fine.

MAP issues were because a pin wasn't seated correctly.

Bad news on the tach. I changed absolutely nothing between leaving the other evening and coming in this morning. I literally walked to the car, plugged in the laptop, connected the MS and started the RPM.

Now its behavior is this:
-With VR1- to TD and VR1+ to ground I get 1,200 RPM solid with the engine off, and 0 solid with the engine on
-With VR1+ unconnected I get 1,200 RPM solid with the engine off, and wildly oscillating RPM with it running. Changes to the noise filtering settings make no difference.
-Very, very occasionally it will work perfectly.

Car starts and idles on the MS, seems to respond ok to throttle blips, I'm not going to drive it without AFR though.

Last edited by flightlead404; 12-10-2016 at 01:02 PM..
Old 12-10-2016, 01:00 PM
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