80 Series Error Codes - 6 at Once

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Joined
Aug 29, 2014
Threads
6
Messages
25
Location
Albuquerque
Hey Everyone,

Took my '93 for a weekend trip a bit ago, and about halfway through, the CEL came on. I've got an '00 where it comes and goes, and I figured that might be case with the old one, too. Sadly, a month later, it's stubbornly on, and I figured I'd slowly work my way through it until I got it addressed. That is, until my 17 yo pointed out that I apparently spaced re-registering it in August, and now I need to get it to pass emissions, ASAP.

My problem is that it is showing 6 error codes. 1-2, 2-8, 4-1, 8-3, 8-4, 8-5. Is this my truck's way of saying to take two aspirin, and call the shop in the morning? I can't believe all those things failed at the same time. My first thought is that I have an issue with the wiring harness somewhere, and a connection or three has worked loose. I also figured I'd just start with the O2 sensor, and go from there.

Anybody out there deal with thing kind of thing, before?
 
 
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