Quote:
Originally Posted by Nomake Wan
Okay, bad news.
...
I send 78123400 and get back...junk. I send 45123400 and get back coherent data. The junk log is attached to this post.
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That is bad news.
The junk log you posted looks a lot like the data that comes out of my 92
all the time. I have noticed that there are lots of FF and other high values. As the binary bits are coming down the wire, the converter is seeing a 1 (2 volts to 5 volts) when it should be seeing a 0 (0 volts to 0.8 volts).
Interestingly, I noticed on my 92 a while back that I got partially good data when the battery was low and all junk after I charged the battery. I wonder if the signal voltage from the ECU is too high?
I don't know why restarting your car would fix it.
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Subaru ECU and TCU Website
1992 Alcyone SVX Version L
1992 Alcyone SVX Version L
1994 Alcyone SVX S40-II
2004 Subaru Legacy 2.5 SE Sports Tourer
1996 Subaru Legacy 2.2 GX Wagon
1988 Subaru Justy J12 SL-II