Procede V3 Issues, SES/Limp and Misfires

ChoochXI · 09-11-2009, 04:47 PM

First time poster, so appreciate any help/insight. I have a 2008 335XI and have the Procede V3. When I initially installed it, it worked great, but after about a month or so, it started to stutter under hard applications of throttle anywhere from the 3,500-5k rev range. The car would then go into limp mode and the SES light would come on.

The first time, I disconnected the proceed, took the car to the dealship and had it serviced. When it came back, I reconnected the Proceed, updated to the latest software/firmware after speaking with a helpful staff member at Vishnu (Dustin I think), and tried again. Everything worked great again...for about a month or so...now the whole cycle has repeated.

I just got an OBD reader today and see that its throwing a P0301 error which indicates Cylinder number 1 is misfiring. I disconnected the proceed, cleared the error and the car is running fine in stock mode...I want to reconnect the unit again, as the power/torque difference is amazing, but if anyone has any input on getting the unit to run reliably so that its not always causing misfires/limp modes, I'd really appreciate it!

dmooreco · 09-11-2009, 04:56 PM

Hopefully this will be fixed in v4

S65V8 · 09-11-2009, 05:00 PM

Sorry to hear that guys. Re-affirms why modding is at your own risk I guess. Hope it gets fixed.

per · 09-11-2009, 05:03 PM

I had similar problems a year ago , in my case it was the sparkplugs that had to be changed

ChoochXI · 09-11-2009, 05:05 PM

I read about the sparkplugs in response to the engine misfires, but wouldn't the car be idling quite roughly if one of the plugs needed to be replaced? The car idles very smoothly...

OpenFlash · 09-11-2009, 05:11 PM

Hi guys,
100% hardware related. The problem is either going to be worn sparkplugs, or less likely a weak coil, or even less likely a bad/clogged injector. A cat running a stock tune at 6-psi of boost can get away with any of these issues indefinitely because peak cylinder pressures are relatively low. A cat running a high HP tune needs all of these components to work as they should. Or else, misfire. Simple as that.

To fix, the first thing you should do is determine which cylinder is misfiring. That is easy given that the diagnostic code(s) will tell you. Next, change the spark plug in that cylinder. If your plugs are more than 15k old, it would be a good idea to change them all. Factory OEM plugs will do just fine.

If problem persists, it's likely to be a weak coil. Easy to determine by swapping the suspicious coil with another coil. Drive the car and try to trigger the misfire code again. If it "follows" the new cylinder location, then you know what to do. Replace it. They are reasonably inexpensive.

If the misfire stays on the same cylinder then it is very likely you have a faulty/dirty injector. At that point, you'd better off taking it to the dealer for them to diagnose/replace it.

Ultimately, it is VERY important to follow all these steps, in this order, to quickly solve your misfire problem. Because, gone unfixed, it will just get worse and worse which is no fun. No damage can come of it. It's just annoying.

Shiv

WOPALX · 09-11-2009, 05:13 PM

Quote:

Originally Posted by ChoochXI

I read about the sparkplugs in response to the engine misfires, but wouldn't the car be idling quite roughly if one of the plugs needed to be replaced? The car idles very smoothly...

Email Vishnu, but depending on how many miles you have on the car I'd say look at the plugs first.

OpenFlash · 09-11-2009, 05:13 PM

Quote:

Originally Posted by ChoochXI

I read about the sparkplugs in response to the engine misfires, but wouldn't the car be idling quite roughly if one of the plugs needed to be replaced? The car idles very smoothly...

No. A car with marginal plugs will and can drive smoothly forever. What requires max plug performance is when operating under load when it is harder to bridge the plug gap with a spark. When the gap isn't bridged, a misfire occurs. Bridging the gap at cruise or idle requires very little spark intensity due to low cylinder pressures.

Shiv

per · 09-11-2009, 05:14 PM

My car did not run rough at idle , neither with stock power.

ChoochXI · 09-11-2009, 05:21 PM

Thanks fot the great response Shiv. I will do as you indicated, and keep you guys posted as to how it works out...I have about 15000 miles on the car now, so I'll just have all the plugs replaced.

dmooreco · 09-11-2009, 05:21 PM

I doubt it's the plugs in my case, I only have 4200 miles!

dmooreco · 09-11-2009, 05:28 PM

Codes after 133 firmware and 9-9 maps yesterday

29D2
2E9F
2C32
2C6C

SES came on at the top of 1st gear.

jpsimon · 09-11-2009, 05:35 PM

send shiv an email with those codes, he'll get back to you quicker

Former_Boosted_IS · 09-11-2009, 05:50 PM

Quote:

Originally Posted by dmooreco

I doubt it's the plugs in my case, I only have 4200 miles!

If you are getting single cylinder misfires, then shiv is right on as many of us have experienced it. Swap you misfiring coil pack with a cylinder where there is not a misfire. If the misfire follows, then change that coil pack. If it doesn't follow the coilpack, then change the plug. If it persists, then it is likely an injector and you need to take the car to the dealer.

OpenFlash · 09-11-2009, 06:14 PM

Quote:

Originally Posted by dmooreco

Codes after 133 firmware and 9-9 maps yesterday

29D2
2E9F
2C32
2C6C

SES came on at the top of 1st gear.

Did you read the bit about contacting us directly if you have any issues with the beta maps/firmware? It was red and in bold print at the top of the documentation.

For now, just erase the codes as the firmware update itself can trigger them. Then check the codes again if/when you throw an SES. And then email me the code info (shiv@vishnutuning.com). Preferably read from the PROcede's code reader (which is displayed in decimal as opposed to hex).

All this stuff is very easy to diagnose and solve. Just please follow the guidelines when it comes to troubleshooting.

Shiv

dmooreco · 09-11-2009, 06:41 PM

Quote:

Originally Posted by shiv@vishnu

Did you read the bit about contacting us directly if you have any issues with the beta maps/firmware? It was red and in bold print at the top of the documentation.

I did email you and submit a call back request via the website yesterday. I've purchased a Unichip from you In 2002, Xede in 2005 so I know the drill

OpenFlash · 09-11-2009, 07:03 PM

Quote:

Originally Posted by dmooreco

I did email you and submit a call back request via the website yesterday. I've purchased a Unichip from you In 2002, Xede in 2005 so I know the drill

Just give me a bit more time. In the last two days, a couple hundred people updated their procede. Still answering emails from wednesday.

Shiv

ZBMW · 09-12-2009, 09:34 AM

Thanks for the information, Shiv. My E92 went limp the other day and was running rough
16,000 miles on the odo. I had a heavy load and floored it to get into traffic on an uphill merge lane. Got home and got a P0303 code (cyl. 3 misfire). CEL and rough engine are gone. Will check the plugs.

rbaldwin28 · 11-02-2009, 12:52 AM

Quote:

Originally Posted by ZBMW

Thanks for the information, Shiv. My E92 went limp the other day and was running rough
16,000 miles on the odo. I had a heavy load and floored it to get into traffic on an uphill merge lane. Got home and got a P0303 code (cyl. 3 misfire). CEL and rough engine are gone. Will check the plugs.

I have the same, cylinder 6. Does it limp over 6000rpm or so?

09-11-2009, 04:47 PM	#1
ChoochXI Registered 1 Rep 3 Posts Drives: 2008 BMW 335XI w/Procede v3 Join Date: Sep 2009 Location: Canada iTrader: (0)	Procede V3 Issues, SES/Limp and Misfires First time poster, so appreciate any help/insight. I have a 2008 335XI and have the Procede V3. When I initially installed it, it worked great, but after about a month or so, it started to stutter under hard applications of throttle anywhere from the 3,500-5k rev range. The car would then go into limp mode and the SES light would come on. The first time, I disconnected the proceed, took the car to the dealship and had it serviced. When it came back, I reconnected the Proceed, updated to the latest software/firmware after speaking with a helpful staff member at Vishnu (Dustin I think), and tried again. Everything worked great again...for about a month or so...now the whole cycle has repeated. I just got an OBD reader today and see that its throwing a P0301 error which indicates Cylinder number 1 is misfiring. I disconnected the proceed, cleared the error and the car is running fine in stock mode...I want to reconnect the unit again, as the power/torque difference is amazing, but if anyone has any input on getting the unit to run reliably so that its not always causing misfires/limp modes, I'd really appreciate it!
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09-11-2009, 04:56 PM	#2
dmooreco Private 3 Rep 62 Posts Drives: X3 Join Date: Sep 2005 Location: CO iTrader: (0)	Hopefully this will be fixed in v4 __________________ 2009 335i xDrive/Le Mans Blue/M-Sport/Prem/Nav/HD/Sat/Alum Last edited by dmooreco; 12-28-2009 at 11:33 AM..
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09-11-2009, 05:00 PM	#3
S65V8 _ 812 Rep 3,160 Posts Drives: ... Join Date: Apr 2009 Location: Los Angeles, CA iTrader: (10)	Sorry to hear that guys. Re-affirms why modding is at your own risk I guess. Hope it gets fixed.
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09-11-2009, 05:03 PM	#4
per Lieutenant 47 Rep 507 Posts Drives: M3 E92 Join Date: Jul 2007 Location: Sweden Gothenburg iTrader: (0)	I had similar problems a year ago , in my case it was the sparkplugs that had to be changed __________________ M3 E92 ESS VT-625
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09-11-2009, 05:05 PM	#5
ChoochXI Registered 1 Rep 3 Posts Drives: 2008 BMW 335XI w/Procede v3 Join Date: Sep 2009 Location: Canada iTrader: (0)	I read about the sparkplugs in response to the engine misfires, but wouldn't the car be idling quite roughly if one of the plugs needed to be replaced? The car idles very smoothly...
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09-11-2009, 05:11 PM	#6
OpenFlash 1750 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]	Hi guys, 100% hardware related. The problem is either going to be worn sparkplugs, or less likely a weak coil, or even less likely a bad/clogged injector. A cat running a stock tune at 6-psi of boost can get away with any of these issues indefinitely because peak cylinder pressures are relatively low. A cat running a high HP tune needs all of these components to work as they should. Or else, misfire. Simple as that. To fix, the first thing you should do is determine which cylinder is misfiring. That is easy given that the diagnostic code(s) will tell you. Next, change the spark plug in that cylinder. If your plugs are more than 15k old, it would be a good idea to change them all. Factory OEM plugs will do just fine. If problem persists, it's likely to be a weak coil. Easy to determine by swapping the suspicious coil with another coil. Drive the car and try to trigger the misfire code again. If it "follows" the new cylinder location, then you know what to do. Replace it. They are reasonably inexpensive. If the misfire stays on the same cylinder then it is very likely you have a faulty/dirty injector. At that point, you'd better off taking it to the dealer for them to diagnose/replace it. Ultimately, it is VERY important to follow all these steps, in this order, to quickly solve your misfire problem. Because, gone unfixed, it will just get worse and worse which is no fun. No damage can come of it. It's just annoying. Shiv
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09-11-2009, 05:14 PM	#9
per Lieutenant 47 Rep 507 Posts Drives: M3 E92 Join Date: Jul 2007 Location: Sweden Gothenburg iTrader: (0)	My car did not run rough at idle , neither with stock power. __________________ M3 E92 ESS VT-625
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09-11-2009, 05:21 PM	#10
ChoochXI Registered 1 Rep 3 Posts Drives: 2008 BMW 335XI w/Procede v3 Join Date: Sep 2009 Location: Canada iTrader: (0)	Thanks fot the great response Shiv. I will do as you indicated, and keep you guys posted as to how it works out...I have about 15000 miles on the car now, so I'll just have all the plugs replaced.
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09-11-2009, 05:28 PM	#12
dmooreco Private 3 Rep 62 Posts Drives: X3 Join Date: Sep 2005 Location: CO iTrader: (0)	Codes after 133 firmware and 9-9 maps yesterday 29D2 2E9F 2C32 2C6C SES came on at the top of 1st gear. __________________ 2009 335i xDrive/Le Mans Blue/M-Sport/Prem/Nav/HD/Sat/Alum
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09-11-2009, 05:35 PM	#13
jpsimon Team Zissou 3084 Rep 10,198 Posts Drives: 2022 AWD M3 Comp - SMB Join Date: Dec 2006 Location: CT iTrader: (7)	send shiv an email with those codes, he'll get back to you quicker
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09-12-2009, 09:34 AM	#18
ZBMW Black Forest Bimmerphile 2 Rep 137 Posts Drives: 2007 335i Join Date: Jan 2007 Location: Colorado iTrader: (1)	Thanks for the information, Shiv. My E92 went limp the other day and was running rough 16,000 miles on the odo. I had a heavy load and floored it to get into traffic on an uphill merge lane. Got home and got a P0303 code (cyl. 3 misfire). CEL and rough engine are gone. Will check the plugs.
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