LT4 Problem!

[Kevin Doyle]

Drove the vette to see U-2 in norman Ok. about 500 miles round trip what a production great show. Well everything went well untill about 70 miles from home I noticed a vibration that felt like a tire out of balance. Stopped at a rest area thought for sure it was a flat nope. Took off and it felt alot worse in 1st gear kinda like a miss a little stutter doesnt feel like it does it when coasting in neutral.No miss when idling. This is gonna take some investigating,62000 miles. Thanks Kevin.

 

[Kevin Doyle]

Well went out to check it out tonite and the service soon light is on and I can feel a miss at idle. guess its time to buy one of those obd2 code readers,Kevin.

 

[93Rubie]

I'm guessing here, but I'm willing to bet that you got a P03XX, code. Codes will give you a direction to go in, keep us posted, if we can help.

 

[Kevin Doyle]

Scanner

Well I got the scanner today and remembered to remove hyper tech program and re install stock program and wallah no ses light no codes no problems. In the hyper tech sheet in said you should run 92 octane minimum. I have had to run 91 octane my last 2 tankfuls maybe this is what set it off. All I know is I really enjoy my 96 lt4 it is one bad machine! Thanks Kevin.