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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 09-01-2013, 09:51 PM   #1
orthotist
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03 330xi No Spark Question

I have an issue of no spark! It had been running fine, drove it and then the next day wouldn't start. Cranks fine.

Searched and came up with what I should do:

1. Replaced crankshaft position sensor: Done-still no spark
2. New plugs: Done-still no spark

I'm thinking about the two cam position sensors. What do you guys think or next step should be?

Thanks in advanced
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Old 09-01-2013, 10:33 PM   #2
SamDoe1
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Re: 03 330xi No Spark Question

Codes? Get the car scanned and that should tell you what crapped out. Don't throw any money at it until you get the codes read.
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Old 09-01-2013, 10:45 PM   #3
orthotist
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no spark

Quote:
Originally Posted by SamDoe1 View Post
Codes? Get the car scanned and that should tell you what crapped out. Don't throw any money at it until you get the codes read.
No codes neither, forgot to mention that, sorry
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Old 09-02-2013, 11:08 AM   #4
Arnezie
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Are you sure it's getting fuel ??
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Old 09-02-2013, 11:29 AM   #5
orthotist
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no spark

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Originally Posted by Arnezie View Post
Are you sure it's getting fuel ??
Not 100% for sure, I hear the fuel pump when the key is in the on position.
That would be unrelated to having no spark though.
Any 100% full proof ways of knowing if I'm checking the spark correctly? I was using a spark plug tester tool in the end of the coil packs, hooked to a bolt for ground. No spark.
once I get spark back it should run. It was running fine before and then overnight, poof, nothing.

I was wondering about the camshaft sensors x2?
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Old 09-02-2013, 11:35 AM   #6
Dino1394
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Did you unplug the coils from the spark plug or did you unplug the connector at the coils?


Cause I think if you unplug the coils itself the DME just shuts down that cylinder.

(but then again that doesn't explain why your car isnt starting)


maybe a crank position sensor?
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Old 09-02-2013, 01:22 PM   #7
orthotist
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no spark

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Originally Posted by Dino1394 View Post
Did you unplug the coils from the spark plug or did you unplug the connector at the coils?


Cause I think if you unplug the coils itself the DME just shuts down that cylinder.

(but then again that doesn't explain why your car isnt starting)


maybe a crank position sensor?
I just had the tool in the end of the coil with the coil plugged in.
Already replaced crankPS.
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Old 09-02-2013, 03:20 PM   #8
bmwbob89
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Pull the coil, Insert a spark plug, Ground the plug and have somebody crank it. You should see the spark easily. I was going to tell you to stick your tongue in there but it could hurt you. These cars rarely loose spark. They have common fuel pump issues. Do a search as I have posted an easy way to check the fuel pump.

Last edited by bmwbob89; 09-02-2013 at 03:21 PM.
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Old 09-02-2013, 05:16 PM   #9
Kubica
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Sounds like a fuel issue. Try a different key too.
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Old 09-02-2013, 06:22 PM   #10
orthotist
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no spark

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Originally Posted by bmwbob89 View Post
Pull the coil, Insert a spark plug, Ground the plug and have somebody crank it. You should see the spark easily. I was going to tell you to stick your tongue in there but it could hurt you. These cars rarely loose spark. They have common fuel pump issues. Do a search as I have posted an easy way to check the fuel pump.
That's the way I did it and no spark. The tongue thing didn't work neither.

The Fuel pump has nothing to do with spark.
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Old 09-02-2013, 06:28 PM   #11
orthotist
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No spark

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Originally Posted by Kubica View Post
Sounds like a fuel issue. Try a different key too.
Fuel and spark are two different elements in starting an engine. I have no spark! I will worry about the fuel pump and fuel once I know I have spark. Gas will not ignite without a spark. I'm not trying to be an ass but is anyone even reading the post about not having spark?

I have several keys and tried different ones, no luck on that neither.

Thanks for suggestions though
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Old 09-02-2013, 08:15 PM   #12
Kubica
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Check the connection of the battery terminal under the hood. Make sure the thermostat wires are connected properly.
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Old 09-02-2013, 09:21 PM   #13
lszlszx
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I'm thinking fuses, or relays. Check the fuse pack in the DME box, there is also a big fuse under the carpeting on the shock tower. Check all the fuses for what it's worth!
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Old 09-03-2013, 09:10 AM   #14
SamDoe1
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Quote:
Originally Posted by orthotist View Post
That's the way I did it and no spark. The tongue thing didn't work neither.

The Fuel pump has nothing to do with spark.
Did you try this on every coil pack? I find it hard to believe that you have no spark and no check engine light or codes. That sort of thing should be throwing all kinds of misfire codes.
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Old 09-03-2013, 11:12 AM   #15
orthotist
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no spark

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Originally Posted by SamDoe1 View Post
Did you try this on every coil pack? I find it hard to believe that you have no spark and no check engine light or codes. That sort of thing should be throwing all kinds of misfire codes.
I did not do it on every one of them. I just did the first three. I have a hard time believing that the car ran fine and the next morning that the three coils I checked would not work. I just can't imagine that just the first three I checked are the only ones not working. It doesn't even hit though when cranking over.
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Old 09-03-2013, 11:17 AM   #16
orthotist
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Quote:
Originally Posted by lszlszx View Post
I'm thinking fuses, or relays. Check the fuse pack in the DME box, there is also a big fuse under the carpeting on the shock tower. Check all the fuses for what it's worth!
I checked every fuse in the engine area (drivers side in black box) and glove box. Relays though are a different story. I don't know where to start with those.
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Old 09-03-2013, 11:20 AM   #17
SamDoe1
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Quote:
Originally Posted by orthotist View Post
I did not do it on every one of them. I just did the first three. I have a hard time believing that the car ran fine and the next morning that the three coils I checked would not work. I just can't imagine that just the first three I checked are the only ones not working. It doesn't even hit though when cranking over.
If you're not getting spark but everything else is connected and ok, the DME has to be preventing your engine from starting. Because of that, I'd point to a sensor issue. You replaced the CPS but might have gotten a bad one, take it back and get a different one if you can. Otherwise you might have other issues. Getting your car scanned by a BMW specific tool might be a good idea at this point.
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Old 09-14-2013, 07:22 PM   #18
orthotist
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Turned out to be the key module deprogrammed. Just had It changed about 3 weeks ago because the car had used up all the keys in it's life and when we purchased it we wanted another key, so we had to get a new module. Don't know what made it deprogram though. All fixed now!

Thanks for all the suggestions, folks!
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