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Plugs not firing

2001 1100 bmw replaced ignition coil an brain box an still nothing

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Make sure the wires leading to the coils you had tested are still good and connected properly. Wire gets weak and brittle over time and the movement caused by removing/replacing the coils could have created an internal break or short someplace.
Also, make sure the kill switch is not turned off

Posted on Jan 03, 2014

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Posted on Jan 02, 2017

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  • 3567 Answers

SOURCE: Problem with ignition system.... i check fire from

Try a new spark plug. Also, the plug wire may have gone bad or the plug cap may have a bad connection.

Posted on Jul 01, 2010

miket756
  • 2702 Answers

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Posted on Mar 03, 2010

rockitman187
  • 2559 Answers

SOURCE: No ignition fire. Have replaced spark plugs and

If you air not getting spark,Check the CDI and stator for power

Posted on Jul 23, 2009

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1 Answer

The current supply by brain box to number two plug coil is low than other three plot coi


What make , model and year vehicle ? Engine size also . The brain box as you call it doesn't supply current to coils , just a ground . Check the coil with ohm meter .

May 31, 2017 | Cars & Trucks

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Hi, my bmw e30 323i has a start problem, it only starts when its cold but hot it doesn't and when I check the plugs and (replace)coil and the coil plug isn't firing . Can I ask for help what's the problem...


Did you check the ECM or ignition module. You need a computer tester for that but they are not that much today. To me it sounds like an ignition module though

Feb 23, 2015 | BMW Cars & Trucks

1 Answer

Brain box


The misfire causes unburnt fuel and air to pass by the oxygen sensor. The sensor sees the oxygen and thinks more fuel is needed, so it adds gas. Focus on the misfire, bad spark plug, ignition coil, plug wire. A clogged fuel injector also causes a misfire but less common.

Apr 12, 2014 | 1999 Volvo S80

1 Answer

No spark already replaced coil an brain box


Hi, Mike if you have a CKP sensor it needs compression to send the correct signal to the ICM/ECM, make sure both spark plugs are in heads and use a grounded third plug to check for spark or hold spark plug cable close to spark plug in the head. If still not getting spark the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, or BAS sensor.
7. Faulty ignition switch.
8. Security alarm failing to disarm needs reset
For more information about your issue, please visit the websites below. Good luck and have a nice day.
R1100RT No Spark Please Help BMWSportTouring Forums
Help My new R1100S died and has no spark
1993 2000 BMW R1100RT R1100RS Service Manual Moto Data Pr BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
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Jan 02, 2014 | 2001 BMW R 1100 R

1 Answer

1997 dodge neon stopped running while driving replaced sensors egr, plugs. wires, solenoid, brain cleaned injectors. getting gas don't no what else to do.


Try ignition coils, are you getting fire to the plugs? If you the spark is a weak yellow that may be your problem.

Oct 03, 2013 | Dodge Neon Cars & Trucks

2 Answers

94 chevy 1500 4.3 no spark no fuel


Sounds like you replaced alot of parts for nothing.
The pickup coil in the distributor "fires" the module which grounds the coil and the injectors.
Those components would need to be tested. The coil fires the plugs when the ground is removed by the module or the key switch.

Jan 08, 2013 | GMC C1500 Cars & Trucks

1 Answer

Got a 85 toyota pickup..will not start..replaced coil, brain box, and all fuses...still no fire from the coil?


Not sue what you mean by brain box. You may need to replace the ICM the Ignition Control Module that sits right below the coil. Mine cost almost $300 locally, but found them online for less then $100. When mine went out in my 1985 Toyota pickup I was doing about 45 MPH and it was just like someone turn the key off., dead, no spark nothing. I ran the troublesooting steps in my repair manual and found it was dead.

Sep 09, 2011 | 1985 Toyota Pickup

3 Answers

Husqvarna 14" chainsaw wont start. put new plug


Try a new spark plug.If still does not fire you have a bad ignition coil.

Nov 26, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

How do I change the spark plugs on a BMW 523i engine and what is the correct spark gap?


The spark plug change is very straight forward. Basically, you remove the plastic valve cover trim panel, unplug the harness plugs from each of the ignition coils, remove the two nuts securing each coil, pull the coil up. The rubber spark plug connector boot should come up with the coil. You can now remove the spark plugs.

The spark plugs are not gappable. Install them as they come out of the box.

Replace the rubber connector boots at the same time, these wear out and can cause miss-fire problems.

Note that if you find oil in the spark plug wells, the valve cover gaskets must be replaced. Not only does this make a mess, but it deteriorates the boots and also causes miss-fires.

See the DIY article in the Spring 2005 issue of the Bavarian Autosport - Fast Times newsletter (see link below):

http://www.bavauto.com/shop.asp?HC1=0&HTarget=sc_fasttimes.asp&HCY=&HCM=

Contact Bavarian Autosport for the spark plugs and connector boots (and valve cover gaskets) at 800-535-2002, or order online.

Aug 31, 2009 | 2001 BMW 5 Series

1 Answer

I can't find the spark plugs for 1995 BMW 325i.


The 2003 BMW 325i uses a coil-over-plug system, so the spark plugs are connected directly to the coils, deep in the cylinder head.

To get to the spark plugs:
  1. Remove sound reduction or ignition coil covers as needed
  2. Open control box cover
  3. Disconnect ignition coil electrical connector by lifting up plug lock
  4. Remove ignition coil by pulling straight up
  5. Use the necessary tools to remove the spark plugs
There are six plugs, and the factory plugs that come with the car are most likely the NGK BKR6EQUP (laser platinum, 4-ground electrode) ... or if it's not the platinum version, the BKR6EKUB (a dual-ground electrode, semi-surface discharge type).

Jun 01, 2009 | 2003 BMW 325

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