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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Dec-06-2017, 07:09:56 PM   #21
rovert604
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Default Re: Fuel pump issue/quick fix?

What is your fuel level?
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Old Wed, Dec-06-2017, 07:21:40 PM   #22
11b4
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by rovert604 View Post
What is your fuel level?
Topped off.

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Old Wed, Dec-06-2017, 07:45:57 PM   #23
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Default Re: Fuel pump issue/quick fix?

Took out my coils and plugs and everything looked clean. I'm at work right now, I read that sometimes the cylinders can fill up with fuel and not spark. The solution is to try and crank the engine with the plugs out? That doesn't sound right to me.

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Old Wed, Dec-06-2017, 08:31:37 PM   #24
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Default Re: Fuel pump issue/quick fix?

Is it getting fuel pressure in the lines? I hate to ask an obvious question but could you have accidently reversed the polarity of the pump? Fuel pump relay doesn't necessarily mean fuel relay. When the fuel pump fails it will throw that code as well, it just means there is an error somewhere in that circuit.

I would think if the cylinder was filled with gas you would see the plugs were wet and smelled when they were removed.
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Old Wed, Dec-06-2017, 09:00:30 PM   #25
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Default Re: Fuel pump issue/quick fix?

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Took out my coils and plugs and everything looked clean. I'm at work right now, I read that sometimes the cylinders can fill up with fuel and not spark. The solution is to try and crank the engine with the plugs out? That doesn't sound right to me.
If the cylinder is flooded with fuel, it will not allow the spark plugs to spark, so cranking the motor with the plugs out spits out the excess fuel. If you do that and notice the plugs wet, dry the plug tip area with a paper towel before reinstalling.
Also if you pulled the plugs and it looks clean (it should have carbon buildup on the tips) could be the fuel washing/rinsing off the carbon, meaning there is excessive fuel in the cylinders.
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Old Wed, Dec-06-2017, 09:02:05 PM   #26
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by e46Dan View Post
Is it getting fuel pressure in the lines? I hate to ask an obvious question but could you have accidently reversed the polarity of the pump? Fuel pump relay doesn't necessarily mean fuel relay. When the fuel pump fails it will throw that code as well, it just means there is an error somewhere in that circuit.

I would think if the cylinder was filled with gas you would see the plugs were wet and smelled when they were removed.
I havnt checked fuel pressure. Pump polarity is good. When I get home I'm going to try and crank it a couple times with the plugs out to check compression.

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Old Wed, Dec-06-2017, 09:02:54 PM   #27
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by Halftim3 View Post
If the cylinder is flooded with fuel, it won't let the spark plugs spark, so cranking the motor with the plugs out spits out the excess fuel. If you do that and notice the plugs wet, dry the plug tip area with a paper towel before reinstalling.
I'll try it when I get home

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Old Thu, Dec-07-2017, 12:00:46 AM   #28
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Default Re: Fuel pump issue/quick fix?

Is there a way to test fuel pressure at the fuel rail or just by the filter

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Old Thu, Dec-07-2017, 01:13:19 AM   #29
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Default Re: Fuel pump issue/quick fix?

As stated before, I had the plugs out. Filled the whole with shop rags and turned the key and all the rags popped out. No signs of gas or oil. So reinstalled the plugs and coils. Still won't start. Rechecked codes, still only have the same code. Cleared it and nothing. I think I'm just going to have insurance take it to the shop.

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Old Thu, Dec-07-2017, 01:51:18 AM   #30
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Default Re: Fuel pump issue/quick fix?

Hold up. I just took the fuel line off the pump to see if it's even pumping. The pump isn't pushing fuel through, but is priming. Where did k go wrong then?

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Discussing Fuel pump issue/quick fix? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)