So my rpm gauge stopped working after I installed my hks twin power. I'm pretty sure I installed it correctly with the white wire going to negative (black wire) on leading coil, each yellow to black and blue wire on trailing coils with the red wire connected to the white wire on the trailing coil. The car starts up fine and drives fine but the rpm isn't working. Any ideas to what the problem is?

 

Nvm it started working after I installed a new starter.

 

How would the starter affect the tach?

 

lol sometimes is best not to ask how it got fixed. as long as it works...

 

Lol agreed

 

Lol...yes, I'm not sure how it fixed it but it just started working again after I installed a new starter.