If you have a D15 Motor with the stock D15 Fuel rail & injectors will you have Idleing problems if you add a D16 I/M & TB? Should i upgrade the fuel system to d16 aswell or does it even matteR? i belive to fix the problem i have to get the car tune. But i'm trying to avoid this, what do you guys think i should do??

I'm getting a Air and Gas Mixture idleing problem, Car's idleing at around 3k rpm for about a sec then drops to 1k rpm. This is my reaccuring problem. hehe

Thanks for the help!!

 

No, you can leave the stock fuel components.

You won't have idling problems unless you install it improperly.

I take it you currently have the vertical plenum and want the horizontal one.

It also sounds like you already have a vacuum leak though. If it does it constantly.

 

I'm missing a bolt on the bottom of the I/M could the be a problem?

 

It could...

 

get a new bolt, junk yards are great for that