Difference report EGO stuff way off

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cwdodson88
Helpful MS/Extra'er
Posts: 96
Joined: Tue Apr 15, 2014 7:39 am

Difference report EGO stuff way off

Post by cwdodson88 »

Volvo b18/b20 hybrid
MS1 extra 029 firmware
crane opto pickup driving a single coil.

So today I drove to work and ran a datalog just to see how a new intake manifold was doing, all was well, life was good. Then I got in the car on my lunch, plugged in the top opened TS, clicked the key, and as my o2 sensor was warming, TS generates a difference report. The difference report has come up in the past when I made a change while not connected to the ECU, but I didnt make any changes... So it changed my ego switchpoint to 1.2 and all the rest was 0... :shock:

anyone ever seen anything like that?
cwdodson88
Helpful MS/Extra'er
Posts: 96
Joined: Tue Apr 15, 2014 7:39 am

Re: Difference report EGO stuff way off

Post by cwdodson88 »

so it is looking like maybe a bad USB to serial adapter causing some data burned to the ECU incompletely. But I cant verify yet...
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