Plug D is found on the charge pipe which goes to the throttle body. It is visible by looking down past the throttle body and is the plug with the brown, yellow, red and grey wires and is the lower plug of the two in the area.
Where is the sensor D on a jb4 engine?
Sensor D is not pictured since it’s at the bottom of the engine bay. On the end of the JB4 box there is also a small Molex plug. The OBD cable that runs from inside the car to the JB4 will be connected to this small plug. Plug A only applies to older Rev1 Stage1 units.
How do I connect the jb4 to the OBD cable?
On the end of the JB4 box there is also a small Molex plug. The OBD cable that runs from inside the car to the JB4 will be connected to this small plug. Plug A only applies to older Rev1 Stage1 units. New Rev2 Stage1 & all JB4 units do not utilize this connection. Gen3B units do not utilize the AFR wire Step 3: Harness layout and JB placement
Is the jb4 a plug and play tune?
The JB4 is a true plug and play tune offering safe and adjustable gains. The unit ships with a base setting in map 1 that increases the boost by +4.0psi over stock that is safe to be used with 91US octane and 95 Euro.
How do I connect the battery to the jb4 unit?
In order to avoid removing the battery a wire guide or cable tie can be used by taping onto the end of the OBD wire. The wire will come out of an area behind the battery and can be run to the JB4 unit and plugged into the Molex plug. It is essential the male and female molex plugs are connected the right way round with no force needed.
Description
The JB4 is a true user adjustable plug and play solution for all MQB based models in the VW Audi Group range. Power Gains: Starting at 35bhp and 40ft lb with 91 octane/95Ron with + 4.50psi boost over stock on the default setting. Up to 90bhp and 70ft-lb with bolt on modifications, higher octane and boost adjustment with the optional BMS Data Cable.
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Where is the plug D on a Honda Civic?
Plug D is found on the charge pipe which goes to the throttle body. It is visible by looking down past the throttle body and is the plug with the brown, yellow , red and grey wires and is the lower plug of the two in the area.
Where is the JB unit on a Gen3B?
Step 3: Harness layout and JB placement . The JB unit can be placed either behind the battery box or in the area behind the ECU. The harness passes under the intake pipe to the left of the engine.
How does a JB harness work?
The JB works by intercepting and altering the signal going to the ECU hence you will remove the factory plug replacing it with the plug on the JB harness and plug the factory plug into the JB harness.
How to remove camshaft sensor plug?
Remove the plug from the camshaft sensor by sliding back the grey tab all the way back and then pushing it down. Plug the removed plug into the male plug on the JB harness and the female plug from the JB harness into the sensor. Remember to lock the grey tabs back into place once the plugs have clicked back in. .
Can you drive an Audi S3 on ramps?
In preparation for the install for the Golf R, Audi S3 and Audi S1 you may want to drive the car onto ramps or raise it so Plug D further down the install can be accessible.
Can a JB be removed from a harness?
The JB may be removed from harness for ease of passing the harness under the intake pipe using a flat screw driver. The harness can also go over the pipe if cosmetics is not an issue. Below is a layout of the JB locations and routes to the sensors. This may vary if a after-market intake is fitted.
Peterb3n
So I'm in the middle of installing my jb4 and have got to the part where I need to tap the wire... Every install video I've seen talks about a red wire, except I don't have one on my 7.5. Photo shows what I mean, so which one is it?
WHY.A.H.WHY.A
I would say the brown wire, but don't take my world for it, best bit it's to talk to @george@BMS
S3 Turbo
So I'm in the middle of installing my jb4 and have got to the part where I need to tap the wire... Every install video I've seen talks about a red wire, except I don't have one on my 7.5. Photo shows what I mean, so which one is it?
SpursMadDave
Thanks! I managed to locate an updated version of the install instructions from Burger Motorsports and you're spot on.
SpursMadDave
Really good in fairness. Fitting was a bit of a sod, and I'm dreading removing it for servicing, but as a performance mod it's made a hell of a difference. Loving the pedalbox as well (although fitting on that was an absolute sinch).
Dazzle
You need an extention cable to run from the connection under the engine, then it's a 5 minute job to remove Sent from my SM-G950F using Tapatalk
R-Estate
There was a member on here who made them but not sure he still does, have a look in the classifieds, he also made an AFR cable so that you didnt have to spice that either.
