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General E46 Forum
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Old 06-05-2014, 07:19 PM   #81
lszlszx
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You can leave it connected, you just won't see full voltage due to load.
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"Would the codes indicate if it's the carburator?"
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Old 06-05-2014, 07:23 PM   #82
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Ok. but, as long as both connections get some sort of voltage, then that would rule out things like EWS, clutch switch, etc... things that would prevent the starter from becoming energized.
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Old 06-05-2014, 09:02 PM   #83
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Yes, that's correct.
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Old 06-07-2014, 11:36 AM   #84
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So, I went out to Harbor Freight this morning and picked up a DMM. Got all my tools ready to take out the airbox. Figured I would try and start the car, just to see. Of course, it fires right up!

So, now I have no clue. Clutch switch? EWS/security? Other?

I drove it a few miles to get everything nice and warm. Will let it sit until this evening and give it another shot.
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Old 06-07-2014, 04:01 PM   #85
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I just tried starting the car again. Took a few tires before it finally cranked. Real odd. Gotta be a sensor or something?
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Old 06-07-2014, 06:05 PM   #86
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Might be the ignition switch.
Take off the lower steering column cover, held on by two push pins.

Look at the ignition switch connector.
The black wire with the blue stripe energize the starter.

Check for battery voltage at this wire with the key turned, when the starter doesn't crank.
No voltage means bad switch.
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Old 06-11-2014, 07:05 PM   #87
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Hi guys
If my car has been sitting for more than a couple hours, it's hard to start. But if I've been driving it, then go park and turn it off, then come back to it 10 minutes later, it starts instantly. Any ideas about what's going on? Thanks
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Old 06-11-2014, 10:28 PM   #88
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More info needed.
Does it crank when it starts hard?
Mileage and maintenance performed?
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Old 06-11-2014, 10:39 PM   #89
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Yes it cranks when starting hard. Just bought the car less than a year ago. 90,000 miles. Not sure about prior maintenance. I have a feeling it might have to do with not getting enough fuel. After sitting for more than a couple hours it will never start on first attempt. Second attempt I keep the gas peddle floored while cranking, not sure if that makes a difference but then usually on that second attempt the engine sputters, then I rev the engine and all seems well at that point. Any ideas? Thanks
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Old 06-12-2014, 09:48 AM   #90
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That does sound like a possible fuel supply issue.
What I would do is to connect a fuel tester with a T fitting, then let it sit after running it shortly.

Try to start it after a few hours and look at the gauge as you're starting, so you can see the actual pressure.
It should shoot up to 50psi right after the key is turned.
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Old 06-12-2014, 09:54 AM   #91
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Thanks, will do. But do you have any ideas as to why it starts instantly if it has only sat for like 10 minutes? For example, I drive to Starbucks, park, turn off the engine, go get a coffee, then come back to the car and it starts right up with no hesitation!
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Old 06-12-2014, 10:13 AM   #92
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As the car is sitting and cooling off, parts shrink, maybe that has something to do with it.
The only way to find out is by trouble shooting.
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Old 06-12-2014, 10:24 AM   #93
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Harborfreight has a fuel pressure tester kit that has the right fitting for the schrader valve for just $20.
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Old 06-12-2014, 11:55 AM   #94
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and for the diesel engine's a reason for no start may be the heater ignition relay.....
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Old 06-12-2014, 04:04 PM   #95
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Wasn't this thread a sticky? Even if it wasn't, it sure deserves to be over the "I want a faux M3" thread.
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Old 06-13-2014, 11:37 AM   #96
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Local mechanic solved my problem, it was the clutch switch of all things.
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Old 06-13-2014, 07:01 PM   #97
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Quote:
Originally Posted by Cavi Mike View Post
Wasn't this thread a sticky? Even if it wasn't, it sure deserves to be over the "I want a faux M3" thread.
No, it wasn't and I agree completely.

Quote:
Originally Posted by Mindspin311 View Post
Local mechanic solved my problem, it was the clutch switch of all things.
At least that didn't cost much.
Were you able to check voltage at the starter?
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Old 06-14-2014, 09:51 PM   #98
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Quote:
Originally Posted by lszlszx View Post
Were you able to check voltage at the starter?
I was prepared to, but then the car started. So I ruled out the starter.
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Old 06-24-2014, 07:33 PM   #99
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My no start issue is, i tern the key to position 2 all lights up turn to 3 no crank or click. then to 2 then it wont let me go to 3 again. which scenario would that be related to?
thanks
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Old 06-25-2014, 10:08 AM   #100
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You have a no crank/no start situation.
Start with section 1. low voltage, then go to section 3. starter.

As far as the ignition switch, every German car I owned, if the engine doesn't start, you have to turn the key all the way back to be able to start again.
That's a safety feature, in case the driver doesn't notice that the engine turned on and tries to start again.
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