Procede boost fluctuation

Bme30 · 03-07-2011, 06:06 PM

While driving tonight my car started having the boost go from 2-17psi it was all over the place. Shortly after I got a half check engine light??? WTF. Also I could hear the wastegates clicking a lot. About 5 more mins of driving that car is back to normal......any ideas???

OpenFlash · 03-07-2011, 06:09 PM

Quote:

Originally Posted by Bme30

While driving tonight my car started having the boost go from 2-17psi it was all over the place. Shortly after I got a half check engine light??? WTF. Also I could hear the wastegates clicking a lot. About 5 more mins of driving that car is back to normal......any ideas???

Are you running the beta maps?

Bme30 · 03-07-2011, 06:24 PM

I'm running the 1-21 maps you sent me with my unit. On install I got a really hard start with a half check engine light. The car reset itself and was perfect. That was Friday night.

OpenFlash · 03-07-2011, 06:53 PM

Quote:

Originally Posted by Bme30

I'm running the 1-21 maps you sent me with my unit. On install I got a really hard start with a half check engine light. The car reset itself and was perfect. That was Friday night.

It's not terribly abnormal to get a hard start/engine light upon installation since often the DME doesn't fully go to sleep before it is unplugged. The boost oscillation thing is something else I think. I've seen it reported once before but I have not been able to recreate it. If it happens again, can you switch to valet mode (map0) and see if the problem persists? That will tell me where to look if it is indeed a traceable problem.

Bme30 · 03-07-2011, 07:05 PM

A look at the issue.
Check out this video on YouTube:

http://www.youtube.com/watch?v=V32N9CCIvEo

OpenFlash · 03-07-2011, 07:08 PM

Doesn't really help without a datalog to go with it unfortunately.

Bme30 · 03-07-2011, 07:21 PM

I'll buy a longer cable in the morning and try to make some logs.

OpenFlash · 03-07-2011, 07:23 PM

Quote:

Originally Posted by Bme30

I'll buy a longer cable in the morning and try to make some logs.

Good.. that will help diagnose. Please make sure you include Boost Control Setpoing and Boost Control DC in the datalog.

Shiv

Bme30 · 03-07-2011, 07:34 PM

Map 1 and map 2 are only making 2psi at most now. Map 0 has boost fluctuation. Would the wastegate compensation have anything to do with anything? At idle I can hear the wastegates click alot. But only on map 1 and 2.

e92bmw · 03-07-2011, 07:39 PM

17psi?
Shiv whats the max boost on map 1??

OpenFlash · 03-07-2011, 07:44 PM

Quote:

Originally Posted by beemw

17psi?
Shiv whats the max boost on map 1??

Max allowable boost is 16psi. Don't worry though.. that 17psi reading on the Procede boost display read from the intercooler pipe, in FRONT of the throttle body. It is being caused by throttle closures, not from actually running high boost. Actual boost is probably below 10psi in the OP's case.

Shiv

OpenFlash · 03-07-2011, 07:46 PM

Quote:

Originally Posted by Bme30

Map 1 and map 2 are only making 2psi at most now. Map 0 has boost fluctuation. Would the wastegate compensation have anything to do with anything? At idle I can hear the wastegates click alot. But only on map 1 and 2.

If you can email me a datalog (shiv@vishnutuning.com) I can try to make sense of what you are seeing. Without it, Im just guessing. Not something I can figure out here. And it should have nothing to do with wastegate compensation as everything is completely disabled in valet mode.

e92bmw · 03-07-2011, 07:50 PM

Quote:

Originally Posted by shiv@vishnu

Max allowable boost is 16psi. Don't worry though.. that 17psi reading on the Procede boost display read from the intercooler pipe, in FRONT of the throttle body. It is being caused by throttle closures, not from actually running high boost. Actual boost is probably below 10psi in the OP's case.

Shiv

Alright thats good

Also can I limit the boost to 13 psi peak if I wanted to?

OpenFlash · 03-07-2011, 07:52 PM

Quote:

Originally Posted by beemw

Alright thats good

Also can I limit the boost to 13 psi peak if I wanted to?

yes. Just remember that the max boost value doesn't dictate your actual boost pressure. But rather the maximum allowable boost the Procede will target via autotuning when running race gas/meth. Think of it has an upper cap.

Shiv

Bme30 · 03-07-2011, 07:54 PM

Thanks shiv. I guess I'm just very frustrated right now. I'll do what I can in the am. I'm in limp mode now anyway. Map 0 runs just like map 3. Going home for the night.

e92bmw · 03-07-2011, 07:56 PM

Quote:

Originally Posted by shiv@vishnu

yes. Just remember that the max boost value doesn't dictate your actual boost pressure. But rather the maximum allowable boost the Procede will target via autotuning when running race gas/meth. Think of it has an upper cap.

Shiv

Oh alright I get it. Thanks for the quick response Shiv!
Idk if you saw the thread under this one with the procede code ckearing, I got a response from Rob but maybe you had something to add?
But thanks anyways

OpenFlash · 03-07-2011, 08:05 PM

Quote:

Originally Posted by Bme30

Thanks shiv. I guess I'm just very frustrated right now. I'll do what I can in the am. I'm in limp mode now anyway. Map 0 runs just like map 3. Going home for the night.

Just read that code when you can. That will probably tell us were to look.

bmw_fanatic · 03-07-2011, 09:09 PM

Oddly this is exactly what happened to one of my customers ride.
We tried to remove procede and the wg clicking is gone.

The car does have the old harness though, I flash the unit v4 and everything works like a charm.

Bme30 · 03-07-2011, 10:33 PM

I have the old harness with update that was posted. I followed the directions to the "T". My procede was purchased in august 2010. When my car was the V4 I NEVER had one single issue!!!! I was thinking about reverting back too! ???????

Bme30 · 03-07-2011, 10:35 PM

also I notice that that wg clicking is not all the time. when the clicking starts the cars starts to have its issues. I just went up to the store and the car was fine.....the wg rattle was gone, but i really didnt have to go far. Its just so weird!!!!

bmw_fanatic · 03-08-2011, 06:27 AM

My situation is a bit different, the car runs fine upon start cold and drive normally, but if drive aggressively, the wg would start clicking and thats when the boost starts to range from 3 to 8psi or so, and it won't go away.
There was no CEL though.

Bme30 · 03-08-2011, 08:00 AM

Quote:

Originally Posted by bmw_fanatic

My situation is a bit different, the car runs fine upon start cold and drive normally, but if drive aggressively, the wg would start clicking and thats when the boost starts to range from 3 to 8psi or so, and it won't go away.
There was no CEL though.

but it sounds similar too. minus the cel. But the whole driving normal thing is the same as my car also. Everything is fine till i want to get on it. and the boost does exactly what yours does as well.

03-07-2011, 06:06 PM	#1
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	Procede boost fluctuation While driving tonight my car started having the boost go from 2-17psi it was all over the place. Shortly after I got a half check engine light??? WTF. Also I could hear the wastegates clicking a lot. About 5 more mins of driving that car is back to normal......any ideas???
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03-07-2011, 06:24 PM	#3
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	I'm running the 1-21 maps you sent me with my unit. On install I got a really hard start with a half check engine light. The car reset itself and was perfect. That was Friday night.
	Appreciate 0 Quote

03-07-2011, 07:05 PM	#5
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	A look at the issue. Check out this video on YouTube: http://www.youtube.com/watch?v=V32N9CCIvEo
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03-07-2011, 07:08 PM	#6
OpenFlash 1748 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Doesn't really help without a datalog to go with it unfortunately.
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03-07-2011, 07:21 PM	#7
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	I'll buy a longer cable in the morning and try to make some logs.
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03-07-2011, 07:34 PM	#9
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	Map 1 and map 2 are only making 2psi at most now. Map 0 has boost fluctuation. Would the wastegate compensation have anything to do with anything? At idle I can hear the wastegates click alot. But only on map 1 and 2.
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03-07-2011, 07:39 PM	#10
e92bmw Lieutenant 12 Rep 490 Posts Drives: 335i Join Date: Dec 2010 Location: In front of your car iTrader: (0) Garage List 2007 335i coupe [0.00] 2007 335i coupe [0.00]	17psi? Shiv whats the max boost on map 1??
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03-07-2011, 07:54 PM	#15
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	Thanks shiv. I guess I'm just very frustrated right now. I'll do what I can in the am. I'm in limp mode now anyway. Map 0 runs just like map 3. Going home for the night.
	Appreciate 0 Quote

03-07-2011, 09:09 PM	#18
bmw_fanatic Private 7 Rep 75 Posts Drives: f30 328 Join Date: Jul 2010 Location: Canada/Taiwan iTrader: (0)	Oddly this is exactly what happened to one of my customers ride. We tried to remove procede and the wg clicking is gone. The car does have the old harness though, I flash the unit v4 and everything works like a charm.
	Appreciate 0 Quote

03-07-2011, 10:33 PM	#19
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	I have the old harness with update that was posted. I followed the directions to the "T". My procede was purchased in august 2010. When my car was the V4 I NEVER had one single issue!!!! I was thinking about reverting back too! ???????
	Appreciate 0 Quote

03-07-2011, 10:35 PM	#20
Bme30 Major 88 Rep 1,039 Posts Drives: 335i coupe Join Date: May 2010 Location: 'Merika' iTrader: (2) Garage List 2007 335i [0.00]	also I notice that that wg clicking is not all the time. when the clicking starts the cars starts to have its issues. I just went up to the store and the car was fine.....the wg rattle was gone, but i really didnt have to go far. Its just so weird!!!!
	Appreciate 0 Quote

03-08-2011, 06:27 AM	#21
bmw_fanatic Private 7 Rep 75 Posts Drives: f30 328 Join Date: Jul 2010 Location: Canada/Taiwan iTrader: (0)	My situation is a bit different, the car runs fine upon start cold and drive normally, but if drive aggressively, the wg would start clicking and thats when the boost starts to range from 3 to 8psi or so, and it won't go away. There was no CEL though.
	Appreciate 0 Quote