Anyway i was on the highway at 3 am coming home and i figured i would floor it to see if how fast i can go. I could barely break 100 FLOORED. Something is not right. Anyone have some common issues that it could be ? I notice a big loss of hp it takes me a while to accelerate and when it does it bangs into gear alot. IM hoping maybe i can get away with a transmission fluid change ? I have a 95 max se

 

We need more inoformation on your car to try and determine what it could be. Miles, mods, matainance etc ...

Changing your tranny fluid will just make shifts smoother.

 

115k miles, no mods done to it, cleaned tb, spark plugs,fuel filter,oil change,oil filter, all the basic maitenance has been completed. But im not sure how to explain it everything is just so delayed on my car like if i floor it it takes a while to go from 60-80. If i didnt mention it i have an automatic, hope this helps.

 

Knock sensor, check for the code.

(If you mention that your CEL isn't on, I will ban you check for the code)

A bad KS can cost you 15hp.

 

i dunno if i K.S. would make your car that slow, i had a KS code and i would push 120 with no prob...


What kind of spark plugs did you buy ??

Try a fuel injection cleaner and run nothing less than 91 octane.

worst case it could be your auto tranny not doing its job.......

 

hehe i will go check. I checked recently like a month ago maybe somethings changed :P . I just thought for something that can remove so much hp from your car you think the cel would come on. Ill go run the codes see what i come up with.Thanks. I ahve ngk coppers in my car. I ALWAYS use 93 and nothing less. And ive also tried fuel injection cleaner but nothing.

 

The usual suspebts are knock sensor, fuel filter and spark plugs. But you took care of 2 out of 3 of those...

What about your air filter?

Maybe your cat catalytic converter is broken or melted...

 

new air filter about 3 k miles ago. HMM speaking of the cat... my flex section is ripped open, i dont know how well the cat is working i didnt think to check but seeing how i have a flow master exhaust on crooked(came like that) that leads me to belieive that its possible thats the problem.