How to: delete HTEV servo with no FI light
So there are a lot of one paragraph how to articles on how to remove the servo motor from your CBR 929 or 954 without throwing a FI code
by making a "servo delete" out of the plug off the servo motor. I found these articles to be intimidating do to the lack of pictures.
So I've taken the time to fully research how the exhaust servo works and how to trick the ECM to think there is still a functioning servo.
I've stuck with what works and used the same components all the how to articles out there tell you to buy. I fully explain where and
why you need to hook each resistor and the capacitor so you can copy this how to for any honda CBR with an exhaust servo (your wires will be different colors)... I know this because cbr 1000rr servo motors etc work in 929/954s... much like most regulator/rectifiers work in all the big four japanesse sport bikes Suzuki GSXR 1000, 750, 600, Yamaha R1/R6, Kawasaki Ninja 14r, 12r, 10r, 6r, 636.
Here's the printable version with just the text (scroll down for the full step by step):
Parts you need:
- 470uF capacitor (any wattage)
- 220 ohm resistor (any wattage)
- 4.7k ohm resistor (any wattage)
Supplies and tools you need:
-Metric allen keys (to remove seat)
-8mm socket wrench (front bolts of tank)
-12mm socket wrench (back bolt of tank on 929)
-any cheap soldering iron ($5 walmart)
-lead free solder wire (home improvement store)
-solder paste (home improvement store)
-Remove servo motor (raise the gas tank to access servo motor)
- cut off servo connector
- connect green/orange wire to negative terminal of capacitor
- connect one end of 220 ohm and 4.7k ohm to pos terminal of capacitor
- connect the other end of 220 ohm resistor to red wire
- connect the other end of 4.7k ohm resistor to turquoise/pink wire
- make sure wires aren't touching
- test the servo delete out by clearing the codes and reving bike up past 7K
- if it works remove the servo delete and seal it in silicone
- re-install servo delete on the plug
- re install tank
Last edited by MattCBR; 02-01-2013 at 3:49 AM.