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-   -   New to the forum.... seeking advice on misfire/injector/hpfp issue. (https://www.n54tech.com/forums/showthread.php?t=57729)

ARROW335 04-27-2019 06:20 PM

New to the forum.... seeking advice on misfire/injector/hpfp issue.
 
A little background on the situation...

Picked up a 2007 335i sedan about 4 months ago w/ 106k on the clock for $700 bucks. Spun rod bearing, bent rod and disintegrated piston #5 cylinder. Other than that it's in pretty damn good shape. I don't know it's history in detail other than the p/o ran it fairly hard (jb4, down*****, cai... not sure what else).
Fast forward to present... new to me engine installed w/ 102k out of a 2007 335i convertible. So far mods include VRSF 2" stock location silicone inlets, BMS DCI, JB4 on map 2 and a dual oil cooler w/ factory t-stat flipped for continuous circulation setup I put together. Engine has index 1 injectors across the board. I'm assuming original coils and unsure on the mileage on the spark plugs. I've got some NGK 95770 ordered and should be in hand tomorrow.
So, I need some advise from you guys that have more knowledge than myself.
I'm currently getting codes:
-2E35 injection valve cylinder 6
-29D2 misfirings cylinder 6
-29D0 misfirings cylinder 4
-29CC misfirings several cylinders
To get to the point... I know injectors, coils and plugs can and will cause these codes but can the hpfp be a culprit for taking out injectors? My fuel pressure reads up to 17 on JB4 logs. I thought normal pressure at WOT was in the 10 -12 range...? I'm sure I've missed important details to aid in y'alls input as far as diagnosing goes so let me know what else will help and I'll let y'all know. Thank you in advance for any input on this!

Haynpunch 04-28-2019 09:59 AM

Post a proper log

Also when was the last time you did walnut blast?

ManiN54 04-28-2019 10:13 AM

I would go on a limb and say injector #6 is your culprit, at least one of the problems. That code 2e35 is very straight-fwd; it’s normally bad injector or bad connection to the injector. 29D0 could be a result of a bad coil/spark plug/ bad connection to coil, vacuum leak etc. other two codes resulted from these two.

ARROW335 04-29-2019 02:23 AM

Quote:

Originally Posted by Haynpunch (Post )
Post a proper log

Also when was the last time you did walnut blast?

Honestly I haven't had a chance to pull a proper log. I have some random ones from JB4 doing what I assume is auto logging. A proper log is first on the to-do list as soon as I get this injector swapped out, assuming that's the culprit. I have an index 10 out of the original engine I'm going to install. The intake runners and valves are clean, I walnut blasted it while it was on the engine stand before dropping it in the car. Thanks for the reply! I've got a lot to learn and I appreciate any feedback.

ARROW335 04-29-2019 02:36 AM

Quote:

Originally Posted by ManiN54 (Post )
I would go on a limb and say injector #6 is your culprit, at least one of the problems. That code 2e35 is very straight-fwd; itís normally bad injector or bad connection to the injector. 29D0 could be a result of a bad coil/spark plug/ bad connection to coil, vacuum leak etc. other two codes resulted from these two.

That's more or less what I was thinking. I'm going to swap in a different injector and go from there. I guess I was worried my DME might have some issues.... one thing at a time... I know. Any thoughts on my fuel pressure reading 17? I'll upload the couple logs I have even though they're not correct 3rd gear 2k to redline pulls. I realize it's pointless until I give you guys some actual numbers logged to view. Hey... thanks for the input! Very much appreciated. :)

ManiN54 04-29-2019 09:16 AM

Quote:

Originally Posted by ARROW335 (Post )
That's more or less what I was thinking. I'm going to swap in a different injector and go from there. I guess I was worried my DME might have some issues.... one thing at a time... I know. Any thoughts on my fuel pressure reading 17? I'll upload the couple logs I have even though they're not correct 3rd gear 2k to redline pulls. I realize it's pointless until I give you guys some actual numbers logged to view. Hey... thanks for the input! Very much appreciated. :)

That is a bit high to be honest but I would get the other issues sorted before I worry too much about that reading. A stuck injector could affect your pressure reading, Another common issue is the fuel pressure sensor.

ARROW335 05-04-2019 09:52 PM

Quote:

Originally Posted by ManiN54 (Post )
That is a bit high to be honest but I would get the other issues sorted before I worry too much about that reading. A stuck injector could affect your pressure reading, Another common issue is the fuel pressure sensor.

Ok... swapped out cylinder 6 index 1 injector for an index 10 and input new injector values with INPA. Also installed new NGK plugs (one step colder than stock) and all is well for now.
ManiN54... question for you.... in your opinion what's the best way to correct the lean condition due to ctls **'s? The old plugs are showing a lean condition (tan in color/no oil) and I've yet to find a definitive answer on how to correct the o2 sensor readings. No mil light but when I read codes with jb4 it always comes back with a "ctls ** detected" code.

Dave @ BMS/Fuel-It! 05-05-2019 05:01 PM

Quote:

Originally Posted by ARROW335 (Post )
Ok... swapped out cylinder 6 index 1 injector for an index 10 and input new injector values with INPA. Also installed new NGK plugs (one step colder than stock) and all is well for now.
ManiN54... question for you.... in your opinion what's the best way to correct the lean condition due to ctls **'s? The old plugs are showing a lean condition (tan in color/no oil) and I've yet to find a definitive answer on how to correct the o2 sensor readings. No mil light but when I read codes with jb4 it always comes back with a "ctls ** detected" code.

Can you post a log please?

ManiN54 05-05-2019 07:40 PM

Quote:

Originally Posted by ARROW335 (Post )
Ok... swapped out cylinder 6 index 1 injector for an index 10 and input new injector values with INPA. Also installed new NGK plugs (one step colder than stock) and all is well for now.
ManiN54... question for you.... in your opinion what's the best way to correct the lean condition due to ctls **'s? The old plugs are showing a lean condition (tan in color/no oil) and I've yet to find a definitive answer on how to correct the o2 sensor readings. No mil light but when I read codes with jb4 it always comes back with a "ctls ** detected" code.

Tan in color does not determine a lean condition, if it is tan in color and otherwise clean - no carbon buildup, it is normal. As for the codes you are getting; you will not avoid that if you are ********* unless you have the proper backend flash. Note that these setting are designed for off-road/track only vehicles.

As Dave requested; post up some logs and you can be further guided in the right direction.
Food for thought; always go for index 11 or 12 when buying new injectors. Also make sure your plugs are gapped correctly. 0.022Ē in your case.

ARROW335 07-14-2019 02:08 PM

Log review
 
1 Attachment(s)
Running E33 @ 95-97 octane (don't have a test kit yet so the octane rating is a guestimation assuming the E85 was 100-105 octane).
5 gallons E85 / 11 gallons 93 octane.

ARROW335 07-14-2019 02:09 PM

Planning on doing the pump BEF tonight.

Dave @ BMS/Fuel-It! 07-15-2019 07:28 AM

Quote:

Originally Posted by ARROW335 (Post )
Planning on doing the pump BEF tonight.

Load the pump flash- itíll help big time with the trims

Keep an eye on your LPFP, try and stay around e30 or so for now

ARROW335 07-15-2019 09:24 AM

Quote:

Originally Posted by Dave @ BMS/Fuel-It! (Post )
Load the pump flash- itíll help big time with the trims

Keep an eye on your LPFP, try and stay around e30 or so for now

Will do.. . Thanks for the reply!

Dave @ BMS/Fuel-It! 07-15-2019 12:24 PM

Quote:

Originally Posted by ARROW335 (Post )
Will do.. . Thanks for the reply!

:burnrubber:

throw up a log when done


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