I just got my cluster back from an SI rebuild and complete checkup, plugged it in and turned the key to test and found everything working just fine. However, upon turning the key away from the "on" position - to accessory or to off, either way - the tachometer needle went from 0 to about idle speed, say 800 rpm, after a couple of seconds and stayed there.
So I pulled the connectors and the coding plug, then re-connected it all and tried again. There are no obvious wire issues behind the cluster. On this second attempt, after turning from "on" the tach goes to 0 then will hiccup towards idle rpm after a couple seconds before coming to rest on the 0 peg.
Can anyone offer insight or experience with this? Some google results pointed to the coding plug but mine seems fine and I hadn't had any problems with it before the SI work. What could possibly be triggering this seemingly consistent signal to be pulsing into the tach after shutdown? I'm going to bed and will have to fiddle with it after work tomorrow..
So I pulled the connectors and the coding plug, then re-connected it all and tried again. There are no obvious wire issues behind the cluster. On this second attempt, after turning from "on" the tach goes to 0 then will hiccup towards idle rpm after a couple seconds before coming to rest on the 0 peg.
Can anyone offer insight or experience with this? Some google results pointed to the coding plug but mine seems fine and I hadn't had any problems with it before the SI work. What could possibly be triggering this seemingly consistent signal to be pulsing into the tach after shutdown? I'm going to bed and will have to fiddle with it after work tomorrow..
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