CEL- Getting o2 bank 2 sensor 1 plus misfire CYL 1 and 2- E550 V8TT
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Member
Joined: Dec 2016
Posts: 80
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E550
CEL- Getting o2 bank 2 sensor 1 plus misfire CYL 1 and 2- E550 V8TT
Hi,
Havent been on here in a minute but recently got an CEL on my 2014 E550 for o2 bank 2 sensor 1 plus heater circuit. Car drove fine for most part was planning to take care of it near future.
Driving home from work reaching close to home car shakes like crazy CEL flashing. Park the car pull the codes and got P0300, P0301 and P0302 on top of the 2 codes for o2 Bank 2 Sensor 1 codes from before.
Turn on car this morning to go to work have too (essential worker) and so far no shaking and pulling codes while warming up the codes for misfires is pending.
Got in and warned up still no misfires.
Now I was planning to do a tune up eventually and change out the spark plugs but wondering in this scenario its most likely the o2 sensor causing the random misfires. Could the random misfire yesterday and no happening today could be something else like knock sensor?
I am trying to see what is even open after work today to buy spark plugs and o2 sensor. Seems Bosch double iridium are oem and are these considered still best to use? Even if I am planning on doing an simple ecu tune on the biturbo V8? I came from a japan car background and usually bosch was considered inferior versus ngk and denso so wondering what is the consensus here?
Any help will be appreciated.
Havent been on here in a minute but recently got an CEL on my 2014 E550 for o2 bank 2 sensor 1 plus heater circuit. Car drove fine for most part was planning to take care of it near future.
Driving home from work reaching close to home car shakes like crazy CEL flashing. Park the car pull the codes and got P0300, P0301 and P0302 on top of the 2 codes for o2 Bank 2 Sensor 1 codes from before.
Turn on car this morning to go to work have too (essential worker) and so far no shaking and pulling codes while warming up the codes for misfires is pending.
Got in and warned up still no misfires.
Now I was planning to do a tune up eventually and change out the spark plugs but wondering in this scenario its most likely the o2 sensor causing the random misfires. Could the random misfire yesterday and no happening today could be something else like knock sensor?
I am trying to see what is even open after work today to buy spark plugs and o2 sensor. Seems Bosch double iridium are oem and are these considered still best to use? Even if I am planning on doing an simple ecu tune on the biturbo V8? I came from a japan car background and usually bosch was considered inferior versus ngk and denso so wondering what is the consensus here?
Any help will be appreciated.
Super Member
Joined: Nov 2011
Posts: 973
Likes: 376
From: Austin, TX
2013 SL550 BiTurbo
replace your upstream O2 sensors. If milage dictates(40k I believe is the stock requirement, I do mine every 10-15k), change the plugs, but they shouldn't be necessary to fix your issue.
I use NGK 97506 [SILZKBR8D8S] as per my tuner.
<---- As you can see, my e550 is pretty quick
I use NGK 97506 [SILZKBR8D8S] as per my tuner.
<---- As you can see, my e550 is pretty quick
Thread Starter
Member
Joined: Dec 2016
Posts: 80
Likes: 2
E550
Thanks for the tip interesting for the spark plug I see it as not compatible for our engine I am guessing its not oem spec but if it works for you it can work for me. So far only Bosch double iridium pops up for oem spec everywhere only.
I bought the O2 sensor denso part for 230 bucks there was another option for NTK version no difference but it cost 330 bucks. I didnt want to spend 100 bucks more for a namebrand difference.
If I made a mistake let me know. Hopefully this takes care of it. Drove around again for lunch and no issues on the drive yet.
Nice on the 12.1 time I am guessing ecu tune and downpipe only to get that? I would definitely want to be doing an ecu tune in the near future for sure.
I bought the O2 sensor denso part for 230 bucks there was another option for NTK version no difference but it cost 330 bucks. I didnt want to spend 100 bucks more for a namebrand difference.
If I made a mistake let me know. Hopefully this takes care of it. Drove around again for lunch and no issues on the drive yet.
Nice on the 12.1 time I am guessing ecu tune and downpipe only to get that? I would definitely want to be doing an ecu tune in the near future for sure.
Super Member
Joined: Nov 2011
Posts: 973
Likes: 376
From: Austin, TX
2013 SL550 BiTurbo
the one I listed are 1 step colder than stock plugs.
Thanks. I have an off the shelf tune, MBH 3" downpipes and I run a blend of E85 + 93 octane. car ran a 12.4 with just a tune and no mufflers.
Thanks. I have an off the shelf tune, MBH 3" downpipes and I run a blend of E85 + 93 octane. car ran a 12.4 with just a tune and no mufflers.
