feels like driving with the "choke" out

P0340 is the Camshsft position sensor circuit, so could be the sensor or the wiring, I.e. The replacement is faulty, is it an OEM sensor?

Could you advise again which engine you have?
 
zedonist said:
P0340 is the Camshsft position sensor circuit, so could be the sensor or the wiring, I.e. The replacement is faulty, is it an OEM sensor?

Could you advise again which engine you have?
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Hi, engine is 2.0 and the part is meant to be OE quality (according to the parts shop), didn't want to spring for the full BMW one at the moment.
 
Your engine has two cam shaft sensor sensors items 5 and 18 below, change number 5 see if it makes the difference:
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the Nefyn cat said:
Just a thought, and don't know how long you've had the car, but is it possible that this is a cam timing problem? Quite prepared to be shouted down, but might be worth checking the basics. Failing that, how about a problem with the loom?
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If the number 5 sensor doesn't sort it, I'll have to get it into a garage as I'm getting towards the end of my knowledge/skills
 
If it is not the sensor, I would suggest it is the vanos unit, the cam shaft sensor is for engine timing, so the only things that can affect it are the timing chain doubtful this would stretch, or it could be the Vanos which controls variable timing of both camshafts, if they are under adjusting or over adjusting then the cam sensor would report an out of range reading code, it has not in your case, it has given the P0340 code which suggests the sensor is faulty, so fingers crossed on sensor number two, as vanos is expensive.
 
zedonist said:
If it is not the sensor, I would suggest it is the vanos unit, the cam shaft sensor is for engine timing, so the only things that can affect it are the timing chain doubtful this would stretch, or it could be the Vanos which controls variable timing of both camshafts, if they are under adjusting or over adjusting then the cam sensor would report an out of range reading code, it has not in your case, it has given the P0340 code which suggests the sensor is faulty, so fingers crossed on sensor number two, as vanos is expensive.
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I really hope it's not vanos, don't need any big expenses at the moment as I've got other things going on.
 
I would go genuine BMW, its worth it in the long run.
 
You guys will buy those Six pots...

Seriously, I would put it in to your mechanic, because he can try parts and send them back, as he has to fix your issue, and with the vanos, it could be just a sticking solenoid, or it could be the full system.

That said, the second sensor is plug and play if it does not work, you could always return it, then put it into the mechanic
 
Sounds like good news on the cam sensors, it might be worth disconnecting the battery for an hour to wipe any adaptions stored in the ECU and then reset any codes as the P1161 alludes to the MAF or fuel trim, again timing could affect this and the ECU makes adaptions to the ECU map to compensate, removing these sets the ECU learning again based on best condition. Worth a try and free.
 
zedonist said:
Sounds like good news on the cam sensors, it might be worth disconnecting the battery for an hour to wipe any adaptions stored in the ECU and then reset any codes as the P1161 alludes to the MAF or fuel trim, again timing could affect this and the ECU makes adaptions to the ECU map to compensate, removing these sets the ECU learning again based on best condition. Worth a try and free.
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Good idea, I take it leave the negative on and remove the positive or just take both off?
 
I would take BOTH leads off and touch them together for a few seconds. I was advised to do this by an Auto electrician years ago.

Tony.

ps. I hope you have got to the bottom of your problems now.:)
 
Codes wiped prior to disconnecting the battery. Codes checked after reconnecting, old friend P1161 back. Rather spirited run in the sun partly for s and g's also thought it'd give me an idea on running etc. Codes again checked and P1161 still there(not that I'm surprised). I'll get this looked into as I can't see any obvious knackered pipes. Might check some using some carb cleaner. I'm not going to tempt fate by mentioning the other code that has not shown its face since the sensor change.

Thanks for the help/advice all
 
Well it's good that your cam sensor issue is fixed the other issue Sounds like the MAF, check breakers yard for part number below, it is used on several models:
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