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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-31-2014, 08:23 AM   #1
JamalC
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Join Date: Jul 2014
Posts: 2
Slow start

2002 330i
Takes two key cycles to start the engine. Leave the key in on position for like 30 seconds to let the system run alil but no difference. No engine light. Could it be the starter or battery?


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Old 07-31-2014, 11:30 AM   #2
Tangent_
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Location: San Jacinto, CA
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If when you turn the key to "start" you get no response at all, it could be starter or battery. A quick way to narrow it down is to turn on your headlights and see if they're nice and bright or dim. If they're dim, odds are good the battery is dead/dying.

If when you turn the key to "start" you get a normal fast sound of the starter turning the engine over, but the engine doesn't actually fire up, it's neither the engine or the battery and there's another issue.

When you say you have no check engine light, you mean you don't get one once you've started it or you don't see one when you turn the key to "on"? If you don't see it when you have the key in "on" but the engine not running, I'd suspect the ignition switch. You should always see the check engine light with the ignition on if the engine isn't running.
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Old 07-31-2014, 11:36 AM   #3
JamalC
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Yes when the key is in on i see check engine light, check engine light goes off when engine starts. I kept the key in the on position for afew secs before actual start and it starts fine. But whenever i try to quickly start with a fast key rotation doesnt start up until the 2nd attempt. Thanx for the response


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Old 07-31-2014, 02:46 PM   #4
Tangent_
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How long do you hold the key in the "start" position on your first attempt when it doesn't work?
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