Question about BMW Cars & Trucks

1 Answer

Bmw 318i e46 n42b20 showed engine light with a p1159. It reads fuel trim.additive high.baknk 1. The throttle is also nt stable it rises and drops. What could be wrong.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 557 Answers

Hi it seems like an air leak in the intake manifold. Check all the vacuum lines around the throttle body and the brake servo line. A small leak will cause the throttle to fluctuate, and also affect the fuel trim. You may also need to clean or replace the throttle body. Good luck

Posted on Sep 21, 2019

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Toyota Ed

  • 1861 Answers

SOURCE: CHECK ENGINE LIGHT CAME ON P0171 FUEL TRIM BANK1 SYSTEM TO LEAN.

Hi. You need to clean the Mass Air Flow Sensor.
This is an easy job.
Get a can of throttle body or brake cleaner spray at your local auto parts store.

Open the hood, and locate the air filter box. follow the tube from the filter box towards the engine. Look for a small black box with 2 screws holding it to the air tube, Remove the wire connector and observe inside the sensor with a flashlight. You will see 2 small wires, and they will appear fuzzy or dirty. Spray the interior with the cleaner until the wires are nice and clean. Do not use compressed air, you will damage the sensor. Put it all back together and drive it.
This will def fix your issue. This is a vey common problem. If you do it yourself, you will save 70 + bucks.

Thanks for choosing FixYa, and a FIxYa rating for my assistance would be greatly appreciated.

Posted on Jan 23, 2009

Anonymous

  • 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

junmag

Jun Magno

  • 175 Answers

SOURCE: Need Fuse Map Diagram BMW 318i 1993

check the internet for a bmw e36 ETM ( electronic troubleshooting manual) everything you need is there.

Posted on Jun 02, 2009

super_guy

  • 1986 Answers

SOURCE: removal and replament of a 3 Series BMW E46 1998 saloon wing mirr

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls. Then you can access the bolts that secure the mirror onto the door

Posted on Sep 29, 2009

darhyland

  • 10 Answers

SOURCE: i have a bmw 318i e46 and she keeps overheating

replace the header tank...common problem with these.....get from dealer, less than 100 quid....also check the cooling fan is working as this causes the tank to split if it is not....not so cheap and complex to repair

Posted on Oct 30, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

BMW E46 318i Fuel consumption problem it is apparently using 1 mile of fuel every 100 meters. BMW E46 318i


Could be many things, but fuel pressure regulator, leaking injectors are most likely. DO NOT DRIVE UNTIL FIXED. If the fuel is really getting into the oil pan, oil will be diluted and could damage engine bearings.

Jul 01, 2015 | Cars & Trucks

1 Answer

What means code 1159 bmw 2001


DTC P1159: Fuel trim additive bank 1 high. Probable cause:
1. Faulty sensor or solenoid
2. Control unit software needs update
3. Faulty PCM or ECM
4. Fuel mixture rich
5. Fuel pressure. Pump, regulator, filter, lines

May 20, 2014 | 1998 BMW 740i L

1 Answer

How do i top up the automatic transmision fluid on my 1999 318i e46 bmw?


Get an owner's manual to be absolutely sure. 318i e46 too nice a machine to screw up...

May 18, 2013 | Cars & Trucks

2 Answers

Bmw 318i e46 overheating


sounds like a blown head gasket

Mar 04, 2010 | 1999 BMW 318 ti

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

May 30, 2008 | 1999 BMW 318 ti

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

stephen Kiarie
stephen Kiarie

Level 1 Expert

32 Answers

Roy Cunningham

Level 1 Expert

35 Answers

vince

Level 3 Expert

1234 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...