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E46 fault codes

My BMW 1999 Model E46 is showing an error of A9 throttle shut off after diagnosis error , this is causing the car to misfire and fail to rev above 2500rpm and cant go beyond 80 km/h , fuel consumption is also high , kindly advise on solution , i have changed the coils , the vent valve , the computer box , the throttle body and now thinking of changing the cables, please advise

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: high fuel consumption on Suzuki swift 2003.

hi
im dave
Is there a leak in one of the fuel lines? Check the length of the fuel lines from the pump (you may need an extendable mirror to see the top of gas tank) right up to the point where it enters the fuel rail on the engine. Take special note of the junctions and try to do it with the car running and at a slight idle so fuel is pumping. Check next for a smell of too much gasoline along the fuel rail as one of the injectors may be improperly seated and or broken and leaking. Has the service engine check engine light come on at all or come on and gone out. If your o2 sensor(s) go you use more fuel. If they go there should be a code stored in your PCM (computer). You can pull any codes out of that car by finding the connector and jumping it. Also if your air element(filter) or any pipes are clogged in that system up to the throttle body you will use much more fuel.

Let me know how these tests go

Posted on Jul 15, 2008

SOURCE: BMW E46 320d Fy81457

replace fuel presure regulator

Posted on Aug 28, 2008

roedmondson
  • 68 Answers

SOURCE: BMW E46 battery light and rev counter

oNCE THE BATTERY LIGHT COMES ON, IT MEANS THAT THERE IS A PROBLEM WITH UR CHARGING SYSTEM. mOST LIKELY THERE MIGHT BE A PROBLEM WITH UR ALTERNATOR. u SHOULD LIAISE WITH AN AUTO-ELECTRICIAN

Posted on Jan 19, 2009

  • 51 Answers

SOURCE: BMW E46 fault code P2799 - what does it mean

If is for a 3 series compact (318ti most common) then
P2799 is the intake air tem sensor 2
Which would explain the high idleing. Probably a sensor problem (bmw will charge) a competant mechanic should do it easily.

Posted on Apr 27, 2009

  • 3 Answers

SOURCE: bmw 318i e46 idle bad

try disconnecting the air mass meter sensor if it runs better then ur air mass meter has failed had the same problem

Posted on May 15, 2009

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I have a 2001 (Y) BMW 318ise e46. when i start the car i have less than 1000rpm, and when setting off it judders and bucks with very little power. When in 3rd gear it seems to be ok but it wont go above...


The engine is misfiring, probably needs a good tune up or a large vacume leak. Scan the engine for codes since the engine light is on and it will tell you the problems.

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A couple of possibilities - first I'd check/replace fuel filter. Then clean MAF (Mass Air Flow) sensor and if those don't cure issue then it's TPS (Throttle Positioning Sensor) replacement time. Check w/BavAuto or Pelican Parts online - both good sources for info & parts

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1 Answer

BMW E46 battery light and rev counter


oNCE THE BATTERY LIGHT COMES ON, IT MEANS THAT THERE IS A PROBLEM WITH UR CHARGING SYSTEM. mOST LIKELY THERE MIGHT BE A PROBLEM WITH UR ALTERNATOR. u SHOULD LIAISE WITH AN AUTO-ELECTRICIAN

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1 Answer

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I'm not sure if yours is an E36 or an E46 model.
On the E46 a common AIR BAG error light is caused by the stretching of a cable underneath the driver's seat when it is slid back and forth (usually when vehicle is shared by different height drivers!).
Unfortunately the solution is replacing this cable (quite cheap), then having the code read and extinguished by a code reader at Bmw (-expensive hourly rates though).
Some other places have code readers like vehicle electrics/alarms specialist -but the cable is still needed to be replaced first (2 min job) -I think ebay has one at the moment (but compare prices with Bmw Dealer parts prices first).
Check Google with airbag light and Bmw E46 (there's shed loads of info).


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6 Answers

Bmw 318i e46 idle bad


try disconnecting the air mass meter sensor if it runs better then ur air mass meter has failed had the same problem

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