Bad Fuel Injector?

BostonMike · 07-25-2018, 11:41 AM

Hi guys, hope someone can help. My car is stumbling at idle and misfiring pretty bad. I check the error codes and I get a P29D2 and a P2E35. They are indicative of a bad spark plug, coil pack, or fuel injector in cylinder 6. I replaced all the spark plugs ( they were due to be replaced anyway). I swapped out a coilpack to see if it followed and it didn't. I looked up how to replace the fuel injector and it doesn't look difficult but it says it needs to be "coded" with some software. I don't have the software obviously. Is this something an indy shop would have, or do I need to go to the dealer? Have any of you done this yourselves?

BMWhartgeM3 · 07-26-2018, 08:02 PM

Quote:

Originally Posted by BostonMike

Hi guys, hope someone can help. My car is stumbling at idle and misfiring pretty bad. I check the error codes and I get a P29D2 and a P2E35. They are indicative of a bad spark plug, coil pack, or fuel injector in cylinder 6. I replaced all the spark plugs ( they were due to be replaced anyway). I swapped out a coilpack to see if it followed and it didn't. I looked up how to replace the fuel injector and it doesn't look difficult but it says it needs to be "coded" with some software. I don't have the software obviously. Is this something an indy shop would have, or do I need to go to the dealer? Have any of you done this yourselves?

I have done this procedure twice. It really isnt that bad. I would get a puller to free the stubborn ones ahead of time. I have the software on my computer and could code them for you, but I'm in Taunton and just had a baby so its tough finding free time.

BostonMike · 07-26-2018, 11:00 PM

I appreciate the response BMWhartgeM3. I know how tough finding time is with a little one. Thing is, I'm sure I could do it myself if I had the time but I just don't lately either. Going to try to find a shop close by to do the work.

Island Road · 08-01-2018, 08:19 AM

I have done these a handful of times and made a made a DIY puller as well that works great.

I actually just installed a set of index -12 a few weeks ago on my E61 with coding. I have an extra set of -12 if your interested with low miles, I can also help with the coding if you need.

BMWhartgeM3 · 08-02-2018, 07:58 PM

I would check out Northshore Motor Werks in Peabody! James knows these cars, and plays no games. Great worry free experience.

BostonMike · 08-13-2018, 12:08 PM

Awww, crap. Just seeing your reply now Island Road. I would have bought those injectors from you! I had to buy new ones. Job was really easy but it didn't fix my problem. Maybe I'll bring it to Northshore Motor Werks in Peabody, BMWhartgeM3. Do they do Walnut blasting? I assume this is going to be the next recommendation.

RCB · 08-26-2018, 02:49 PM

Did you code the new injectors with INPA when you replaced them?

BostonMike · 09-05-2018, 10:23 PM

RCB, I coded the injectors with a Schwaban scan tool. It was on sale for $150 bucks so I bought it. The car is running great now and I think the issue was that I changed the plugs, then drove it around while the injector was still bad. Then I did the coils, drove it around and the injector was still bad. Then I changed the injectors and it still threw the code. Finally I removed the spark plug in cylinger 6 and cleaned it. It had gotten dirty in the mean time. Once I cleaned it, bam, I was good to go. Even though the car was running fine, I brought it to North Shore Motor Werks and had the walnut blast done. The car has 130k on it and it has never been done.

wahooooman · 09-06-2018, 11:00 AM

Quote:

Originally Posted by BMWhartgeM3

I would check out Northshore Motor Werks in Peabody! James knows these cars, and plays no games. Great worry free experience.

I send anything i don't want to work on to to James, he is a master tech and beats most prices! Highly recommended

07-25-2018, 11:41 AM	#1
BostonMike Second Lieutenant 31 Rep 238 Posts Drives: Black 335 Join Date: Jul 2011 Location: Methuen iTrader: (1) Garage List 2017 M4 [0.00]	Bad Fuel Injector? Hi guys, hope someone can help. My car is stumbling at idle and misfiring pretty bad. I check the error codes and I get a P29D2 and a P2E35. They are indicative of a bad spark plug, coil pack, or fuel injector in cylinder 6. I replaced all the spark plugs ( they were due to be replaced anyway). I swapped out a coilpack to see if it followed and it didn't. I looked up how to replace the fuel injector and it doesn't look difficult but it says it needs to be "coded" with some software. I don't have the software obviously. Is this something an indy shop would have, or do I need to go to the dealer? Have any of you done this yourselves?
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07-26-2018, 11:00 PM	#3
BostonMike Second Lieutenant 31 Rep 238 Posts Drives: Black 335 Join Date: Jul 2011 Location: Methuen iTrader: (1) Garage List 2017 M4 [0.00]	I appreciate the response BMWhartgeM3. I know how tough finding time is with a little one. Thing is, I'm sure I could do it myself if I had the time but I just don't lately either. Going to try to find a shop close by to do the work.
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08-01-2018, 08:19 AM	#4
Island Road Major 185 Rep 1,299 Posts Drives: 335i Join Date: Mar 2011 Location: Boston iTrader: (5) Garage List 2008 335i [10.00]	I have done these a handful of times and made a made a DIY puller as well that works great. I actually just installed a set of index -12 a few weeks ago on my E61 with coding. I have an extra set of -12 if your interested with low miles, I can also help with the coding if you need. __________________ 08 AW 6MT \| MHD \| Wavetrac LSD 3.46 \| AE Quad \| VRSF DP'S \| VRSF 7" IC \| DD Hood / Diffuser\| Mtech Front / Rear\| BMW Performance Splitters / Spoiler \| Wheels 18lb 18x9 SQ \| Hexon RR550 \| TFT Inlets
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08-02-2018, 07:58 PM	#5
BMWhartgeM3 Private 10 Rep 78 Posts Drives: E90 335i Join Date: Feb 2015 Location: Boston Ma iTrader: (1)	I would check out Northshore Motor Werks in Peabody! James knows these cars, and plays no games. Great worry free experience.
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08-13-2018, 12:08 PM	#6
BostonMike Second Lieutenant 31 Rep 238 Posts Drives: Black 335 Join Date: Jul 2011 Location: Methuen iTrader: (1) Garage List 2017 M4 [0.00]	Awww, crap. Just seeing your reply now Island Road. I would have bought those injectors from you! I had to buy new ones. Job was really easy but it didn't fix my problem. Maybe I'll bring it to Northshore Motor Werks in Peabody, BMWhartgeM3. Do they do Walnut blasting? I assume this is going to be the next recommendation.
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08-26-2018, 02:49 PM	#7
RCB Enlisted Member 28 Rep 42 Posts Drives: 2008 535Xit E61 Join Date: Apr 2015 Location: Boston iTrader: (0)	Did you code the new injectors with INPA when you replaced them?
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09-05-2018, 10:23 PM	#8
BostonMike Second Lieutenant 31 Rep 238 Posts Drives: Black 335 Join Date: Jul 2011 Location: Methuen iTrader: (1) Garage List 2017 M4 [0.00]	RCB, I coded the injectors with a Schwaban scan tool. It was on sale for $150 bucks so I bought it. The car is running great now and I think the issue was that I changed the plugs, then drove it around while the injector was still bad. Then I did the coils, drove it around and the injector was still bad. Then I changed the injectors and it still threw the code. Finally I removed the spark plug in cylinger 6 and cleaned it. It had gotten dirty in the mean time. Once I cleaned it, bam, I was good to go. Even though the car was running fine, I brought it to North Shore Motor Werks and had the walnut blast done. The car has 130k on it and it has never been done.
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