i had a tune up done yesterday, ngk platinum plugs, knock sensor, fuel filter coolant flush and b+g intake cleaning. the car feels the same as before the tune up should i have noticed a diffrence. the car has exactly 100,000 miles. i had the knock sensor replaced since i was doing a tuneup anyway. there were no codes stored. i also changed the oil again with mobil 1 synthetic. the mechanic siad the car looks to be in great shape, nothing wrong on the drivetrain side. and no codes in the ecu or anything. could the car have just been underpowered from the start?

 

Maybe your car was already in a great shape before the tuneup

 

the only thing i can sugest is to do a dyno or run a real-time OBD-2 (or what's it called) scanner.

btw did you install KS youself? if not, how much did u pay for instalation? (i just ordered mine)

 

i had my mechanic do it it was $300 for everything i bought the knock sensor and he did it for me when he did the tune up. the car was dynoed prior to tune up i am going to have it re dynoed on the 12th

 

if you have no codes hold off on replacing your knock sensor. i swore mine was bad since my dyno was low but when i had the car tuned up my mechanic did a diagnositic on the car and said there were no codes

 

i wanna do a dyno of my car too.......where do you do dyno?