How To Tune Your K-Jet CIS For Boost M103 Mercedes

Become part of our community and unlock exclusive perks just for you. Enjoy stunning Loyalty Badges to showcase your support and receive Priority Replies to your comments. Dive into Members Only Shorts and Videos, featuring unique content you won't find elsewhere!
Celebrate your membership with special Shoutouts in our videos, and enjoy fantastic Discounts on Merchandise to sport the new gear. Join us today and become a part of The Benz House click the link below!

   / @thebenzhouse  





Made with Film Maker
https://play.google.com/store/apps/de...

I apologize in advance I'm camera shy once that thing is on I get all discombobulated and scrambled I'll get better with time I hope!!

OK so now that the turbo is on the car what we need to do is tune cis k-jet system and add some more fuel. Now before I go any further I want to make it clear that im going to show you the basics on how to turn up the fuel on your cis k-jet and show you what I did to my car to make it run right with that being said you'll need these tools to start with 3mm alen key to adjust the air fuel meter flap on the top of the kjet system next the fuel distributor and you'll need a flathead screwdriver and a 2mm alen key to work on the eha valve to start with I like to mess with the air fuel meter flap 1st you'll need to understand how it works long lesson short clock wise more fuel counterclockwise less fuel so we will need to turn it clockwise now when you turn it only turn it a quarter at a time and know where you start so if you go to far or something isn't right you can always go back to where it was originally I personally had to only turn mine a 1 and half turn and it was good but my car was a little on the rich side from the get so you might need to turn it a little more maybe a little less I recommend after you adjust this you take it for a ride and see how the afr look mine was running at about 11.4 under boost if I'm not mistaken btw if you don't have a afr gauge on your car I highly recommend you get one without it your kinda tuning in the dark but it's safer to run a little more on the rich side than it is on the lean side now that you've done that you might need to add some fuel to the eha valve by doing that what you'll need to do is take off the 2 flathead screws that hold it in and take off the flathead cover screw on the back after you do that there will be a 2mm alen you can adjust if needed I didn't have to do it to mine personally I like where my afrs were but if you turn it clock wise increase the fuel and counterclockwise decreases the fuel ONLY turn this 1/8th of a turn at a time this is a very small screw and you dont want to over turn it 1/4 of a turn is ALOT on this so just to be safe turn it 1/8 of a turn the put it back together and test it out and have fun