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09-13-2013, 11:41 PM | #1 |
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2008 E90 M3 Check Engine Light- Increased Emissions
Hey guys i went to start my car up tonight and I haven't driven it since tuesday. As I went to start it up all the lights inside the car and the gauges started flickering and the car started up very rough and then the CEL came on. I have an AA drop in filter, resonator delete, and an auto couture exhaust. None of the o2 sensors have been touched so i don't know what could cause this. If anyone as any suggestions please tell me. Btw my car is running up on 65k miles. Thanks guys
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09-14-2013, 12:47 AM | #2 |
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Pull the codes. You might want to take a look at the low pressure fuel sensor replacement threads. Mine started like yours, only without the rough idle. I had increased emissions three times total, I think, before replacing the sensor. Also, I had many different codes. Most pointed to the sensor. Good luck!
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09-14-2013, 11:17 PM | #4 | |
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Try clearing the codes and doing a two trip "drive cycle" to see if the same codes return. If they do you will need someone with good diagnostic skills and equipment. Don't just start throwing expensive parts at the problem. |
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09-15-2013, 04:26 PM | #5 | |
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01-07-2014, 08:18 AM | #6 |
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Any update on what happened? I just pulled the same code this morning. It's been -10°F the past few days, and I had a throttle actuator replaced 4 months ago, other than that no issues. I haven't cleared it and driven any more yet, but will do so on my way home from work.
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01-07-2014, 04:10 PM | #7 | |
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01-08-2014, 08:18 AM | #8 |
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I cleared my code before my drive home from work, and this morning it did not come back on during my drive in. If it was indeed a low battery code, it'd make sense since it appeared initially when it was ridiculously cold out, which would cause a loss of battery power on it's own. I'm on my original battery from '08, so I don't doubt that it's nearing the end of its useful life. I'll wait for the code to come back unless it stops cranking.
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01-08-2014, 04:08 PM | #9 | |
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02-19-2015, 09:45 AM | #11 |
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To follow up - I do believe it was due to a low battery. Last winter I was on the original, 6 year old battery and the code would come up when it was below 0°F and my car sat in the parking lot all day. It would also crank slowly.
I've since replaced the battery with a new one, and this past week has been consistently -10°F and I haven't gotten any codes nor had any trouble with starting. |
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09-24-2015, 07:26 PM | #12 | |
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09-25-2015, 09:47 AM | #13 |
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12-09-2015, 09:37 AM | #14 |
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Im from Miami and we recently got some colder temps (High 60 to low 70) and my car has been parked for a week. Went to started it up an same code appeared "Low Emissions - Check engine light" code U1118. Went and got a new battery as the car was cranking slow and it was the original battery from 09. Noticed that the old battery had a bump on the positive side ("+"). Erased the codes and lets see how it does. For sure the car cranks up a lot faster and no codes this morning. Happy so far!!!!
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01-09-2016, 07:03 PM | #15 |
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My car sits a lot and I got the u1118 network code. I'm hoping its the battery although it showed the follwing image...
What do you think? It did indicate battery low, too. |
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01-09-2016, 07:23 PM | #16 |
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Well it's a cornering light. But I'm sure that didn't cause the SES light. The battery makes the most sense.
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2008 AW E92 M3: Stage II and DCT tune by BPM Sport, convenience coding + coding for mDrive w/Euro MDM (no iDrive) & alarm retrofit by BPM Sport, Fox Red interior, ESS midpipe, Corsa slip on exhaust, carbon fiber M Performance spoiler, black grills, black OEM M3 ZCP 19" wheels, 15/12mm spacers and AW painted reflectors
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01-28-2016, 07:34 PM | #17 |
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Drives: BMW E39 M5, F10 M5, F80 M3
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I had the same thing happen on my 2012 zcp e92 m3. it's probably 02 sensor and secondary pump
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11-15-2018, 10:54 AM | #18 |
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Error code U1118
Hello FRFNUGN
Just got on my 2011 M3 coupe E92 check engine light code U1118 and code U1118P I only get the error on cold days. I'm in Washington DC and it get's really. Just want to know if the error code U1118 or U1118 was resolve with the new battery replacement, Would like to know before I spend $400.00 on a new battery at BMW. Thanks |
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11-15-2018, 11:06 AM | #19 |
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Error code U1118 and U1118P
Hello
I'm in Washington DC and it's cold I also had my 2011 M3 coupe parked for a week. Went to started it up an same code appeared U1118 Increase Emissions Check engine light" code U1118. I see the new battery fix the error code on your car, My M3 also is cranking slow and it's on the original battery from 2011. Do you mind me asking where did you purchase the new battery, also how did you code the new battery Thanks |
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11-15-2018, 11:14 AM | #20 |
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Error code U1118 and U1118P
Hello AW750Li
I'm a little confuse about the error code on my 2011 M3 coupe E92 U1118 and U1118P, I'm thinking on replacing the battery base on some information I'm reading, but I see your shop scanned bad 02 sensor, was replacing the 02 sensor fix the error U1118 on the car. Are you getting the Increase Emotion error and slow crank start. |
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11-15-2018, 11:15 AM | #21 |
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Error U1118
Hello AW750Li
I'm a little confuse about the error code on my 2011 M3 coupe E92 U1118 and U1118P, I'm thinking on replacing the battery base on some information I'm reading, but I see your shop scanned bad 02 sensor, was replacing the 02 sensor fix the error U1118 on the car. Are you getting the Increase Emotion error and slow crank start. |
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11-15-2018, 01:23 PM | #22 | |
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