Quote Originally Posted by blacksambo View Post
You have CEL code 172 etc. It's very common problem with the 6VE1 engine. No big deal to fix. Get new plenum gaskets and go to work removing the plenum. When you replace be careful not to over Torque the bolts. Hand tighten to 13lbs max. That's all. You'll be back in business in no time (allow 4 hours for labor).
I assume you mean 13inch lbs correct? I am in the process of looking that info up now. And yes I did have the CEL codes 171-172 She is running pretty bad. I have been noticing that my gas milage has been getting worse for about the last month from 14 to 15 mpg's to 10-11mpg's and then one day I started it up and it went to 2000 rpm's and then back down and was running real rough. Thats when the light came on.