So today I installed a K&N Cold air intake to my S40. The Install went great with no problems. Except after I completed and I tried to turn the car on, it wont turn over.

1. All electronics work fine and the key will go to the "III"
2. CEL is on and blinks
3. Audible click then the dash goes crazy

I am somewhat new to the Volvo world, so any help would be great!

Cheers!

 

A loose battery cable can cause those symptoms. Did you knock a battery cable loose on your install?

 

Thanks for the respond!
I figured it out, it was just a bad connection on the battery... haha Classic c