performance

Car runs great at the beginning but once it starts to warm up the performance goes away. To where I'm getting knock retard, what can be the cause, what should I look for first.
 

No disintegrations

Well-Known Member
I'd ad an alky kit if everything else checks out good. OOPs I noticed you have alky already. Is this a new problem or has always been this way?
 
Last edited:
How old is spark knock sensor? I've read they can become over sensitive with age.
I had that happen on a non turbo car. Ran good when cold but stuttered at part throttle and just didn't have normal power.
Changed spark knock sensor and all problems went away.
 
Top