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Originally Posted by 1Hokie
I haven't had much time because I am not behind my laptop but I just had the service engine light come on and read out to be misfire 1,5,6. And something like a valvetronic error?? Can someone shed some insight or presumptions before I go apeshit on google when I get home tonight?
First thought was injectors. And since those are done in 3s it looks like I may need to do all 6?? What's that valvetronic reading??
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you should first clear and re-read DME fault codes (done with autologic or dealership software, there's other tools too). after that, relearn the Valvetronic limit positions. right after clearing give it a good 0-60mph (so the DME adaptation resets and valvetronic opens) and if you're still missfiring. you can check valvetronic input voltage with a normal volt meter. it should be between 5 and 2 volts (note, it will slowly decline as it gets out of coldstart). if thats good then your coils are done my friend. hope this helps. God bless.