[thormessiah]

I've been getting these codes on my car. They are obviously O2 codes. Does anyone know if they pertain to a single O2 sensor and if so which one so I can figure out which rear O2 sensor I need to replace. I am almost positive that they are not mixed up.

2C7F Oxygen sensor after cataltytic converter;mixed up
Error will cause a warning light

2C6A: Lambda control 2

30ED- DME superknocking cylinder 1

[Saif2018]

Originally Posted by thormessiah

I've been getting these codes on my car. They are obviously O2 codes. Does anyone know if they pertain to a single O2 sensor and if so which one so I can figure out which rear O2 sensor I need to replace. I am almost positive that they are not mixed up.

2C7F Oxygen sensor after cataltytic converter;mixed up
Error will cause a warning light

2C6A: Lambda control 2

30ED- DME superknocking cylinder 1

Use INPA and check O2 sensors,

[thormessiah]

Originally Posted by Saif2018

Use INPA and check O2 sensors,

so I ended up replacing both postcat o2 sensors, but I am still getting a few codes.

29CF Misfire on cylinder 3
Shadow codes
29F4
29F5
30ED
30F2

Are these codes still o2 related? Coil packs and index 12 injectors are less than a year old. Spark plugs around 3 and they are the stock plugs. I also reset the o2 adaptation on mhd go no avail.

[iqraceworks]

Start doing some troubleshooting....move the coil from cylinder 3 to another cylinder and see if the code follows the coil. If not, check the injector in cylinder 3 to make sure it's not leaking. If you still have the misfire code....throw a new spark plugs in that cylinder......etc,etc,etc..

And if you don't have it yet, get INPA or Protocol.....that will help with troubleshooting.

You have to like (or at least understand) to do troubleshooting if you own a 335i.....👍

Oh....and if your spark plugs are 3 years old, I would just replace them all.

[thormessiah]

Originally Posted by iqraceworks

Start doing some troubleshooting....move the coil from cylinder 3 to another cylinder and see if the code follows the coil. If not, check the injector in cylinder 3 to make sure it's not leaking. If you still have the misfire code....throw a new spark plugs in that cylinder......etc,etc,etc..

And if you don't have it yet, get INPA or Protocol.....that will help with troubleshooting.

You have to like (or at least understand) to do troubleshooting if you own a 335i.....👍

Oh....and if your spark plugs are 3 years old, I would just replace them all.

Replaced them all today with stock Bosch plugs. I still feel a little hesitation on WOT from 3rd to 4th but I did not get any error codes. A quick scan showed the shadow codes

29F4 and 29F5
(Since I'm catless)
And this new one 2FDB - crankshaft position sensor. Once again these are all shadow codes

[Saif2018]

Originally Posted by thormessiah

Replaced them all today with stock Bosch plugs. I still feel a little hesitation on WOT from 3rd to 4th but I did not get any error codes. A quick scan showed the shadow codes

29F4 and 29F5
(Since I'm catless)
And this new one 2FDB - crankshaft position sensor. Once again these are all shadow codes

29F4 and F5 are Cat related as you stated.

Can you post a recent 3rd gear log?

[thormessiah]

Originally Posted by Saif2018

29F4 and F5 are Cat related as you stated.

Can you post a recent 3rd gear log?

got a misfire on cylinder 3 during this one along with the same other codes https://datazap.me/u/volfwaley/misfire?log=0&data=3-20

[Saif2018]

Originally Posted by thormessiah

got a misfire on cylinder 3 during this one along with the same other codes https://datazap.me/u/volfwaley/misfire?log=0&data=3-20

Your HPFP is dropping too low, ~1200psi, under WOT, thats not good also WGDC almost Maxing out,

Run Stage 0 map and see if you have the same issues. Your HPFP could be on its way out,

Turbos seem to be struggling to hit boost targets higher up rev range.

Might be a good idea to run a less aggressive map, maybe a Stage 1+?

When were the Coils replaced?

[thormessiah]

Originally Posted by Saif2018

Your HPFP is dropping too low, ~1200psi, under WOT, thats not good also WGDC almost Maxing out,

Run Stage 0 map and see if you have the same issues. Your HPFP could be on its way out,

Turbos seem to be struggling to hit boost targets higher up rev range.

Might be a good idea to run a less aggressive map, maybe a Stage 1+?

When were the Coils replaced?

Rats I was really hoping it was something easy. Any way to test for sure it’s the hpfp? Coils are brand new eldor coils with around 6 months on them. I should also mention there was some oil in cylinder sockets 1,2 and 3 when I was installing the spark plugs yesterday.

[Saif2018]

Originally Posted by thormessiah

Rats I was really hoping it was something easy. Any way to test for sure it’s the hpfp? Coils are brand new eldor coils with around 6 months on them. I should also mention there was some oil in cylinder sockets 1,2 and 3 when I was installing the spark plugs yesterday.

Ok that rules coils out. Have you done the VCG?

You can probably test HPFP using INPA but I'm not sure how to be honest, as I haven't used it myself.

Definitely worth doing, you can also test Injectors, which is worth doing.

Also I would recommend that you run 93 oct map such as Stage 0/1 or 1+ relog and check again.

[thormessiah]

Originally Posted by Saif2018

Ok that rules coils out. Have you done the VCG?

You can probably test HPFP using INPA but I'm not sure how to be honest, as I haven't used it myself.

Definitely worth doing, you can also test Injectors, which is worth doing.

Also I would recommend that you run 93 oct map such as Stage 0/1 or 1+ relog and check again.

I have not done the valve cover gasket yet because my mechanic told me it didn't look like it needed to be changed last time, but maybe it cracked. I'll revert back to map 0 and do a few logs tonight

[thormessiah]

Originally Posted by Saif2018

Ok that rules coils out. Have you done the VCG?

You can probably test HPFP using INPA but I'm not sure how to be honest, as I haven't used it myself.

Definitely worth doing, you can also test Injectors, which is worth doing.

Also I would recommend that you run 93 oct map such as Stage 0/1 or 1+ relog and check again.

I switched to Dtage1+ e30 and got 2 logs. No codes or misfires
https://datazap.me/u/volfwaley/stage...og=0&data=3-20

[Saif2018]

Originally Posted by thormessiah

I switched to Dtage1+ e30 and got 2 logs. No codes or misfires
https://datazap.me/u/volfwaley/stage...og=0&data=3-20

That's much better, hpfp is looking fine, so is wgdc

It looks like stage 2/2+ was too much for HPFP

Have you tried v9 stage 1+?

[thormessiah]

Originally Posted by Saif2018

That's much better, hpfp is looking fine, so is wgdc

It looks like stage 2/2+ was too much for HPFP

Have you tried v9 stage 1+?

I can switch to that tonight and see what it looks like. Wedge told me the misfires were ignition related and told me to get step 2 plugs

[Saif2018]

Originally Posted by thormessiah

I can switch to that tonight and see what it looks like. Wedge told me the misfires were ignition related and told me to get step 2 plugs

Spark plugs aren't expensive so worth a try,

Good to know mate, let us know the progress.

[thormessiah]

Originally Posted by Saif2018

Spark plugs aren't expensive so worth a try,

Good to know mate, let us know the progress.

Hey man so I changed out all the spark plugs for Ngk step 2 gasped at .022. Unfortunately I still get a misfire on cylinder 3 on some of the latest revisions of my tune. But the OTS STAGE 2 E30 map and my base tune map run flawlessly. I swapped out the coils for cylinder 3 and got the same code prior to lowering the maps.

Stage 2 e30 : https://datazap.me/u/volfwaley/stage-2-e30?log=0&data=3-20

Base custom tune map : https://datazap.me/u/volfwaley/wedge-base-map?log=0&data=3-20