[jwzimm]

Hey all,

I have been trying to make sense of the threads on n54tech but I haven't found my answer. Is there a way to turn off auto-clear on the JB4? Best I have found is threads that state to select 1/3 to turn it on. When I go in and select 1 on the speedo it goes to 3 on the tach now. I tried moving the tach to 0 and paging off but it goes back to 3 when I come back.

Reason I ask is I am currently only stage 1 and would like to have all the codes working so I can properly diagnose issues I am seeing (waterpump problems).

Thanks in advance.

[Rahim e92]

I think 1/4 is off

[weehe126]

Stage 1 as in turbo or tune?

[Secret_Asian]

can someone explain what 1/4 is? How would you set that using the JB4 application

[mike5809]

Originally Posted by jwzimm

Reason I ask is I am currently only stage 1 and would like to have all the codes working so I can properly diagnose issues I am seeing (waterpump problems).

Thanks in advance.

Man jwzimm, more issues? I believe I remember we both started modding at the same time - it seems as if you have had a few issues along the way, sorry to hear about it. Hopefully you get everything sorted.

[kevBquick]

Originally Posted by Rahim e92

I think 1/4 is off

Rahim is correct. 1/4 is off.

1/3 is auto clear and i believe is set on by default.

so set speedo to 1
set tach to 4000 rpms
exit/save

jb4 is not set to disabled auto clear.

[tc535i]

Originally Posted by Secret_Asian

can someone explain what 1/4 is? How would you set that using the JB4 application

when you press both buttons down, it goes into steering wheel control mode.

tach starts at 0, that's your map. speedo should be at 10 for map 1 (aka 0-1), 20 for map 2 (aka 0-2), etc

hit the left up button, and speedo goes to 1. use the right buttons to select 40 on the tach (aka 1-4), then hit the left down button twice to exit programming.

that should take care of it

[jwzimm]

Thanks for the info guys!!

The JB4 documentation is clear as mud!! The cheat sheet for the JB4 settings has absolutely nothing listed for 1/3 and 1/4!

I would think for something that costs as much as the JB4 there would be a complete users manual or full tip sheet for all settings. It appears to all be scattered across various threads here and on n54tech though. Very disappointing. The JB4 itself is a great product but without significant searching (and a fair amount of guessing) it is pretty useless and possibly a little dangerous.

[jwzimm]

Originally Posted by mike5809

Man jwzimm, more issues? I believe I remember we both started modding at the same time - it seems as if you have had a few issues along the way, sorry to hear about it. Hopefully you get everything sorted.

Thanks Mike! Honestly I am a little concerned about the car. There is nothing specific I can put my finger on but have you ever had a car you just felt like was struggling? Mine gives me that impression on anything but the stock tune. Add to it the water pump starting to go and I have been seriously eyeballing selling this car and ordering an M3. $78k is a lot to swing though.

[M.a.r.k.u.s]

Originally Posted by jwzimm

Thanks for the info guys!!

The JB4 documentation is clear as mud!! The cheat sheet for the JB4 settings has absolutely nothing listed for 1/3 and 1/4!

I would think for something that costs as much as the JB4 there would be a complete users manual or full tip sheet for all settings. It appears to all be scattered across various threads here and on n54tech though. Very disappointing. The JB4 itself is a great product but without significant searching (and a fair amount of guessing) it is pretty useless and possibly a little dangerous.

What issues are you having with your waterpump? Is it coming on after turning off the car?

[jwzimm]

Originally Posted by M.a.r.k.u.s

What issues are you having with your waterpump? Is it coming on after turning off the car?

No, I wired the JB4 power wire into the wire for the boost solenoid so I am not having that problem.

I am getting strange behavior from the radiator fan lately. In the morning when it is up to temperature the fan is speeding up and slowing down on a ~5 second cycle. It has never done that before. I checked the water temp with the gauge hijack and it is only around 190 so I assume I am not overheating. I would assume the fan would pick a speed and hold it rather than cycling on and off like it is.

Also, just recently I had the fan come on pretty strong and stay on after a freeway drive. I pulled the code with the JB4 and I got code 0x377A which translates to "Coolant pump, shutdown: Pump blocked". With auto-clear on though it cleared the code after the restart.

[tc535i]

Sicne we're chatting in here... do you guys know how to test our cars for readiness? I have jb4 g5 iso w/usb, laptop running jb4 software, jb4 mobile for android as well as juicebox, couple random obd-2 dongles...

[M.a.r.k.u.s]

Originally Posted by jwzimm

No, I wired the JB4 power wire into the wire for the boost solenoid so I am not having that problem.

I am getting strange behavior from the radiator fan lately. In the morning when it is up to temperature the fan is speeding up and slowing down on a ~5 second cycle. It has never done that before. I checked the water temp with the gauge hijack and it is only around 190 so I assume I am not overheating. I would assume the fan would pick a speed and hold it rather than cycling on and off like it is.

Also, just recently I had the fan come on pretty strong and stay on after a freeway drive. I pulled the code with the JB4 and I got code 0x377A which translates to "Coolant pump, shutdown: Pump blocked". With auto-clear on though it cleared the code after the restart.

that definitely sounds like the waterpump is on the way out. Seems to be a fairly common problem on these cars from what I've read.

[jwzimm]

Originally Posted by M.a.r.k.u.s

that definitely sounds like the waterpump is on the way out. Seems to be a fairly common problem on these cars from what I've read.

Yeah, it is. It scares the crap out of me though as there is little to no warning to the user. From what I have read you get a Yellow overtemp warning followed almost immediately but a Red warning and an engine shutdown. If this happened on I-5 I could be in some serious shit.

[jgoens]

Originally Posted by jwzimm

No, I wired the JB4 power wire into the wire for the boost solenoid so I am not having that problem.

I am getting strange behavior from the radiator fan lately. In the morning when it is up to temperature the fan is speeding up and slowing down on a ~5 second cycle. It has never done that before. I checked the water temp with the gauge hijack and it is only around 190 so I assume I am not overheating. I would assume the fan would pick a speed and hold it rather than cycling on and off like it is.

Also, just recently I had the fan come on pretty strong and stay on after a freeway drive. I pulled the code with the JB4 and I got code 0x377A which translates to "Coolant pump, shutdown: Pump blocked". With auto-clear on though it cleared the code after the restart.

What you might have going on is what I had going on last week--I posted a whole thread about what I found out when a waterpump is going bad...basically your car feels sick and will hold the rpm down and not give you the best performance because of the faults of the waterpump. I had the crazy fan thing and a transmission issue going as well which was all cleared up with changing the waterpump.

[M.a.r.k.u.s]

Originally Posted by jwzimm

Yeah, it is. It scares the crap out of me though as there is little to no warning to the user. From what I have read you get a Yellow overtemp warning followed almost immediately but a Red warning and an engine shutdown. If this happened on I-5 I could be in some serious shit.

I thought mine was going a couple of months ago (false alarm luckily) but Ian quoted me a pretty good price. Don't remember what it was off the top of my head though.

[mike5809]

I had the same waterpump symptoms as you - 1 week later the car shutdown while driving, followed by the yellow and red overheat warnings. You can try to scan for codes - sometimes you will be able to see 1 or 2 codes before the pump actually dies.

[jwzimm]

Originally Posted by M.a.r.k.u.s

I thought mine was going a couple of months ago (false alarm luckily) but Ian quoted me a pretty good price. Don't remember what it was off the top of my head though.

I got the BMW extended warranty specifically because of the water pump issues on these cars. It is covered and they will replace it so long as there are codes to support the warranty claim. If I start seeing more codes (after I turn off auto-clear) I am going to pull the JB4 off and get the code to set clean and then bring it in.

[jwzimm]

Originally Posted by mike5809

I had the same waterpump symptoms as you - 1 week later the car shutdown while driving, followed by the yellow and red overheat warnings. You can try to scan for codes - sometimes you will be able to see 1 or 2 codes before the pump actually dies.

Yeah, I saw your thread. That is why I am wanting to turn auto-clear off. I might even just pull the JB4 off completely in anticipation of final failure. That way once it does happen I can bring it straight in to the dealer and the code(s) will be active in memory.

[M.a.r.k.u.s]

Originally Posted by jwzimm

I got the BMW extended warranty specifically because of the water pump issues on these cars. It is covered and they will replace it so long as there are codes to support the warranty claim. If I start seeing more codes (after I turn off auto-clear) I am going to pull the JB4 off and get the code to set clean and then bring it in.

Good call! Even better if you don't have to pay for it yourself!

[Ozzie335i]

Is the water pump covered by CPO?

[jgoens]

Originally Posted by jwzimm

Yeah, I saw your thread. That is why I am wanting to turn auto-clear off. I might even just pull the JB4 off completely in anticipation of final failure. That way once it does happen I can bring it straight in to the dealer and the code(s) will be active in memory.

If you have the warranty don't even wait till it is a hassle..I didn't have any codes showing but the dealer found many "faults" and they test the waterpump and will know if it is bad. Mine went bad and I had to make it home in lieu of a tow and removed jb4 before I could call bmw assist for a tow to the dealer. Better to control the situation.