Okay so 03/24/20. Redstar downpipes were installed. NO CEL until 04/02/2020 which was poped up. Using my Carly OBD II Reader:

P0420 "Fault: The efficiency of the catalytic converter (cylinder bank 1) is insufficient. _ / Fault: Catalyst System Efficiency Below Threshold Bank 1 / Fault: Catalyst System Efficiency Below Threshold Bank 1 no sub type information / Fault: The efficiency of the catalyst (Bank 1) is not sufficient. _/ Fault: KAT: Catalyst System Efficiency Below Threshold Bank 1 no sub type information / Fault:
The efficiency of the catalytic converter (cylinder bank 1) is not sufficient. / Fault: Is the efficiency of the catalyst (Bank 1) is not ausreichend._ F_M_DOC_DIAG_PASSIVE_APV: The efficiency of the catalyst (Bank 1) is not sufficient."

and P0430 "Fault: The efficiency of the catalytic converter (cylinder bank 2) is insufficient. _ / Fault: The efficiency of the catalyst (cylinder row 2) is not sufficient. _ / Fault: KAT2: Catalyst System
Efficiency Below Threshold Bank 2 no sub type information / Fault: The efficiency of the catalytic converter (cylinder bank 2) is not sufficient."

I figure okay fine this is due to having no cats and seems like a normal issues. I ordered 2 Vibrant 11619 J-style Oxygen sensor restrictor fitting, since this is suppose to make the CEL go away. Based on the Amazon Review's and some YouTube videos I watched they say to use the middle size insert.

04/11/2020 - I installed only the left side spacer on the downpipe (couldn't do the right side since had to drop the downpipe and was on a time restraint) I Cleared the P0430 and P0420 codes.

04/12/2020- I expected to still get the P0420 Code which is exactly what happened but I also got this code -
P0060 " Fault: The heater of oxygen sensor 2 (cylinder bank 2) has an implausible resistance value. _ / Fault: The heating of the lambda probe 2 (cylinder number 2) has an implausible electrical resistance. _ / Fault: HSF2: HO2S Heater Resistance Bank 2 Sensor 2 no sub type information / Fault: The heater for oxygen sensor 2 (cylinder bank 2) has an implausible electrical resistance value.??

04/18/2020 - I was getting my engine mounts replaced and during that time I was going to add the right side Spacer since they have to drop the downpipes anyways. So new engine mounts get installed and also added the right side spacer. I Clear the codes again.

04/20/2020 - After driving for some time now, CEL turns on again and this time it's P0060 code and then P0054
P0054 "The heater of oxygen sensor 2 (cylinder bank 1) has an implausible resistance value. _ /Fault: The heating of the lambda probe 2 (Bank 1) has an implausible electrical resistance. _ /Fault: HSF: HO2S Heater Resistance Bank 1 Sensor 2 no sub type information / Fault: The heater for oxygen sensor 2 (cylinder bank 1) has an implausible electrical resistance value.

So if anyone can help me out I would greatly appreciate it. One theory so far is that it could be the spacer inserts and that I should try putting the smallest one inside instead of the medium size one. I am going to test that tomorrow. If anyone else has any input it would be greatly appreciated

Thank you.

 

So what seems to be happening is the spacers you have are bringing the o2 sensors slightly too far from the exhaust stream which is causing ur heating circuit code to pop up. What I would try to do is wrap your o2 sensors in some type of heat wrap that will keep the heat inside there if not then just swap to a slightly shorter spacer. If you have a tune the other thing you can do is have your tuner broaden your heating circuit range so you never hit the limit triggering the CEL.

 

My man! thanks for the response. That makes sense, so you don't think changing out my spacer will help at all? I thought everyone was using these Vibrant J spacers on these cars? :/ The car also has a Renntech tune so I am not sure that they can do anything with that. But I guess it won't hurt to give them a call and ask them. Just add these 02 Sensor harnesses suck. They give you no extra slack to play with. So I could only install the J Space facing up and towards the Turbos not downwards, not sure if that makes a difference though. Does anyone make an extension cable for the harness?

 

I just swapped the left side with a smallest insert and looks like CEL came on even quicker then before. Any suggestions to an alternate spacer I can use? I was under the impression people on here were recommending the Vibrant J 11619 spacer and it was working for them. Not sure why this is NOT the case for me.

 

I believe anytime you remove the cats, the most reliable way to avoid CELs and other codes from being generated is to have your tuner adjust your tune so that the CEL lights and codes are not generated (by ignoring the sensor, changing variables, or even turning it off - whatever their magic is). Otherwise, you may be experimenting for sometime with no success.

Scott

 

http://www.bigdaddiesgarage.com/

 

Unfortunately Scott this is not an option for me. Renntech will not make any changes to their tune, that has to do with emissions. So that is out of the option, I am stuck figuring out another way.

 

Thanks for the link. Do you have personal experience with these?

 

Not on my E63, but I'm using their mini cat adapters on my R35, and have a friend used same product on he's Mclaren, so far so good.

I did some researches prior and big daddie garage mini cat adapter is the only one that works compare to other companies with similar copy cat product.

I highly recommend it.

 

awesome brother, Thank you, I might give those a shot and do some more testing. Also is there a way to contact them directly? Their website looks like it was made from back in 2002. lol

 

I felt the same way about their website and their company name. But the product quality is great and received the parts within a few days. I've never spoken or contacted them directly.

 

Keep us posted! I have been delaying my catless weistec install (also have rentech tune) due to the CEL triggering. I went through this with my X5M and tried vibrant spacers and they didn't work. I swapped to Fabspeed's mini cats and that didnt work either. I may cut the cat delete section and have 200cells fabbed in- unsure yet. I'm in a ready county that requires o2 readiness to pass inspection unfortunately.

https://www.fabspeed.com/universal-o...verter-single/

 

Yea i just ordered the BigDaddie ones should get them later week install them and see how goes from there. I will keep you posted. I saw those Fabspeed ones as well. They look nice but pricey, good to know that those didn't work either.

 

Please keep us posted...I actually have the same exact problem (same codes). I have been leaving the CEL on and its annoying not to mention a direct fail when being tested.

 

Would you mind sharing what attempts you made to get rid of your CEL to add to the list of what is not working?

 

My mechanic changed out the spacers and it did not work. My mechanic got on the phone with the tuner and the AMR tuner basically said it was not on them and that there was nothing they could do. I have been living with it ever since July 2019!

I currently have intake spacers and filter upgrades, along with the obvious mid-pipes we are speaking about. I have a stage 2 tune through AMR (handheld) with 93 and 100 race gas. I haven't put the car on the dyno since this new tune, but AMR tells me I may expect 600awhp and 740awtq. AMR also said that I could expect another 35awhp from the race gas. I haven't tried the race gas map through the handheld as of yet, and I am not sure I will since I just learned Eurocharge is offering a new E85 Flex tune that is supposed to deliver 680-720awhp and around 640awtq on a completely "STOCK" motor for around $2700 for my 2014 E63 S-AMG.

 

Just to correct the EC E85 figures... the EC Flex Tune delivers between 680awhp & 720rwhp and around 740awtq on a completely "STOCK" motor, i.e no supporting mods like air filters, intakes, or Catless exhausts.

 

I use the vibrant spacer. But not the j style. And it has worked for my e63 and my e 350 . Each car needed different size restrictors but they work


ed

 

Just got my pipes on and had the mini cat spacers...CEL came on within 5 mins after leaving the shop...grrr...

 

Sure the shop installed it correctly, there’s a washer provided with it. 5 minutes, sounds like there’s issue with the install. Monitors would need take some time to read sensors, unless it’s completely open circuit or disconnected during drive cycle. I would scan DTC’s and double check the install for errors. Just my opinion. Sorry.

 

Good point. They drove it around at lunch so that might have added some miles to the cycle- I picked it up after work.

I'll pull the codes tomorrow!

 

Codes 0060, 0054

Heating range issues.

 

Did this code problem ever get rectified ?

 

I'm still throwing cat codes and now a misfire...reset Man times and returns shortly after. I'll be reverting soon...at least to get inspected and then possibly run hi flow cats.

 

That sucks. did anyone try the big dadys garage mini cat spacers ?