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BMW 3-Series (E90 E92) Forum
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Misfire/Fuel Pump Plausability
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09-13-2014, 10:56 AM | #1 |
Private First Class
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Rep 102
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Misfire/Fuel Pump Plausability
Every time I try to go WOT the car goes into limp/sputter mode.
I read codes from my AP COBB and it said cyl 4 misfire, other misfire, fuel pump plausibility. I just had the spark plugs changed and most of the coil packs including cylinder 4 coil pack. Any ideas why the sputter wont go away? Tired of getting into good fun racing opportunities then have to put my tail between my legs. |
09-13-2014, 12:25 PM | #2 | |
Second Lieutenant
2
Rep 277
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Quote:
http://www.e90post.com/forums/showthread.php?t=631829
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Stacked BMS Flash & JB4, Dinan CAI, ER Chargepipe, 7" VRSF Intercooler, VRSF Catless DP's, ER Sport Oil Cooler w/Steel lines, Gunmetal 19" VMR V710's, 335is clutch |
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09-13-2014, 04:37 PM | #4 |
Private First Class
8
Rep 102
Posts |
cyl vs firing order?
Cylinder numbering is from front to rear; 1 at the front and 6 at the rear.
Ignition firing order is 1-5-3-6-2-4. Is this correct? Cylinders are 1 to 6 front to rear but firing order is different? I have the code cyl 4 misfire and I changed the coil pack for the firing order so therefor changed the far back coil pack. Should I have changed the coil pack for the 4th "cylinder" and not the firing order cylinder...oh crap. |
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09-13-2014, 10:51 PM | #6 | |
Second Lieutenant
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Rep 277
Posts |
Quote:
__________________
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Stacked BMS Flash & JB4, Dinan CAI, ER Chargepipe, 7" VRSF Intercooler, VRSF Catless DP's, ER Sport Oil Cooler w/Steel lines, Gunmetal 19" VMR V710's, 335is clutch |
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09-14-2014, 10:11 AM | #7 |
Private First Class
8
Rep 102
Posts |
That was the problem.... I put the old coil pack pulled from cyl 6 and put in cyl 4 and my car is back baby!!
Learn something new everyday. Went out in the country and did a few 1/4 mile runs in the high 13's low 14's. Forgot how fast these things are. |
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09-14-2014, 10:25 AM | #8 |
Captain
38
Rep 753
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Be on the look out for injectors soon. It's always good to have a used spare injector. Also download the software here to code. Glad it was a simple coil pack. With mine it was the coil pack then the injector. Probably just bad luck and pure coincidence. just be on d look out for a cheap functioning injector if u can. Never hurts
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09-15-2014, 04:28 PM | #10 |
Captain
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Ignore "fuel pump plausability", (2AAF). It is almost always there and it doesn't mean anything unless you have driveability issues. There is a TIS out on on it.
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