Something is wrong... Please help!!!

Maniac0908 · 07-04-2014, 01:30 AM

For a while now. My car has been acting up. Cold or hot, sometimes when i start the car the rpm will drop super low almost die then come to life. Every so ofter it will just die so i turn off car and do it again. When its running its fine. I watched my lpfp and hpfp values and they are within limits. I also just had my valves cleaned by clem. Does anyone have any ideas? Do we have a icv? Could a boost leak cause this? Any other sensors i should have checked out? Im at 90k so im sure something has gone bad. Please let me know your ideas. Dont wanna be stuck somewhere.

e92_enthusiast_1 · 07-04-2014, 01:34 AM

Could be a sensor or injector? You're not getting any codes? Just throwing things out, pure conjecture.

Maniac0908 · 07-04-2014, 01:52 AM

No codes man. Shit is pissing me off. If this thing dies on me one more time and i get stranded im leaving it there.

I just reset adaptions with jb4. Probably not the best idea. Rpms started bouncing. Turned it off. Restarted. Its not bouncing anymore but it still almost died.

Which sensors could cause this? Do we have a idle control valve?

Injectors got replaced under warranty last year. (Not sure which ones or all)

e92_enthusiast_1 · 07-04-2014, 01:56 AM

an o2 sensor going out can cause idle issues. Idk much about diagnosing though. Keep us updated please. Hopefully someone with experience can chime in.

Quote:

Originally Posted by Maniac0908

No codes man. Shit is pissing me off. If this thing dies on me one more time and i get stranded im leaving it there.

I just reset adaptions with jb4. Probably not the best idea. Rpms started bouncing. Turned it off. Restarted. Its not bouncing anymore but it still almost died.

Which sensors could cause this? Do we have a idle control valve?

Injectors got replaced under warranty last year. (Not sure which ones or all)

Maniac0908 · 07-04-2014, 02:13 AM

Ok. Ill check o2 sensors. Sucks they are such a pain. Is there a way to diagnose them? I would think it would throw a code if they were failing.

As a update: when i got my valves cleaned. They noticed the o ring from my cp was missing. I hope it didnt get sucked into the engine...... Im going to replace it tomorrow. Ill update again.

BaseM3 · 07-04-2014, 09:47 AM

Quote:

Originally Posted by Maniac0908

No codes man. Shit is pissing me off. If this thing dies on me one more time and i get stranded im leaving it there.

I just reset adaptions with jb4. Probably not the best idea. Rpms started bouncing. Turned it off. Restarted. Its not bouncing anymore but it still almost died.

Which sensors could cause this? Do we have a idle control valve?

Injectors got replaced under warranty last year. (Not sure which ones or all)

St** like this

is exactly why I went to an e92 M3

Maniac0908 · 07-04-2014, 10:25 AM

If i didnt owe money on this thing still i would trade it in as well.

Anyone know if we have a idle control valve??

07-04-2014, 01:30 AM	#1
Maniac0908 Major 167 Rep 1,415 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	Something is wrong... Please help!!! For a while now. My car has been acting up. Cold or hot, sometimes when i start the car the rpm will drop super low almost die then come to life. Every so ofter it will just die so i turn off car and do it again. When its running its fine. I watched my lpfp and hpfp values and they are within limits. I also just had my valves cleaned by clem. Does anyone have any ideas? Do we have a icv? Could a boost leak cause this? Any other sensors i should have checked out? Im at 90k so im sure something has gone bad. Please let me know your ideas. Dont wanna be stuck somewhere. __________________ 2007 335XI SEDAN // JB4 G5 // BMS METH KIT // VRSF DOWNPIPES // AFE DCI // ER CP W/ TIAL BOV // MMP SILICONE INLETS // XHP STAGE 3 AT FLASH // TREBILA BEF // BMS OCC // VRSF EXHAUST // FUEL-IT STAGE 2 LPFP // VRSF FMIC // PRECISION RACEWORKS IGNITION SYSTEM // CATUNED COILOVERS // CIC AND COMBOX RETROFIT //
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07-04-2014, 01:34 AM	#2
e92_enthusiast_1 Lieutenant Colonel 35 Rep 1,652 Posts Drives: '10 AW/CR e92 6mt 335i Join Date: Mar 2012 Location: Chandler, AZ iTrader: (1) Garage List 2010 BMW 335i [0.00]	Could be a sensor or injector? You're not getting any codes? Just throwing things out, pure conjecture. __________________ COBB AP Stg 2+ FMIC Aggressive \| VRSF 3" Catless DP \| COBB FMIC \| BMS DCI \| CP-e Metal Charge Pipe \| 370+ whp/435+ lb.ft torque
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07-04-2014, 01:52 AM	#3
Maniac0908 Major 167 Rep 1,415 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	No codes man. Shit is pissing me off. If this thing dies on me one more time and i get stranded im leaving it there. I just reset adaptions with jb4. Probably not the best idea. Rpms started bouncing. Turned it off. Restarted. Its not bouncing anymore but it still almost died. Which sensors could cause this? Do we have a idle control valve? Injectors got replaced under warranty last year. (Not sure which ones or all)
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07-04-2014, 02:13 AM	#5
Maniac0908 Major 167 Rep 1,415 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	Ok. Ill check o2 sensors. Sucks they are such a pain. Is there a way to diagnose them? I would think it would throw a code if they were failing. As a update: when i got my valves cleaned. They noticed the o ring from my cp was missing. I hope it didnt get sucked into the engine...... Im going to replace it tomorrow. Ill update again.
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07-04-2014, 10:25 AM	#7
Maniac0908 Major 167 Rep 1,415 Posts Drives: Alpine White 07 335xi Sedan Join Date: Feb 2013 Location: Towson, MD iTrader: (2)	If i didnt owe money on this thing still i would trade it in as well. Anyone know if we have a idle control valve??
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