gotta love it when it's easy

[1fast6]

After replacing my bald 275/50's with some new 275/60's I started to get KR. I figured it was from taller tire and more traction.
Well, it started getting worse today. To the point I had to lower boost to 20# and add 10% fuel. So now I'm thinking this can't be from the tires.
I start trouble shooting the alky inj. Turns out it was a relay going bad. Luckily the last time I was at the salvage yard I loaded up my pockets with relays:biggrin:

Swapped in a new one and back to 23# with 0% fuel added


EDIT: Now I know what real knock looks like.

 

[Dabigguy]

What relay went bad?

 

[1fast6]

the relay that powers the alky pump

 

[SS/GN]

I would be checking all the grounds carefully,but it is nice when you get an easy one once in a while.

Kevin