I'm getting a gittering feel when the car is sitting in park. and when driving the car feel Heavy . is that the cause of needing a tune??

 

Like this?

 

get on the highway and stretch its lets. get that sucker redlined. it needs to wake up, give it some caffeine.

 

How many miles do you have on your car now?

If you have more than 60K and haven't changed the spark plugs I would do that.

 

reading your other thread, it MIGHT have something to do with your 87 octane. car could be pinging when its cold....

you dont need any tuning, i would start by running 93 and possibly look at the plugs, they might need to be regapped or just get new ones.

 

give your vehicle what it was designed for. 91 or better.

 

Mass airflow?

 

thats what i was thinking..MAF

 

alright good, take off your intake and spray maf cleaner into your sensor might be able to salvage it and not have to get a new one