Code P2099 with Check Engine Light
Thread Starter
Senior Member
Joined: Mar 2020
Posts: 253
Likes: 72
From: USA
2013 s550
The check engine light came back on again and the car is running great, so I ran a bottle of Chevron Techron in the tank twice with about a few hundred miles between tanks and the damn car runs like its brand new now. Light never came back on.
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
Techron is a very good product. Normally, bottled products are made of hopeium and simply never work. Techron in my Mercedes keeps that silly CEL off.
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
Every other month on the first of the month. Buy a case of 6 20 oz. plastic bottles online. If you had asked me about bottled products, I would have cried snake oil. But my S600 V12, now freshly tuned with new ignition components all around and no CELs right now, still loves a bottle every other month.
Highly recommend.
Highly recommend.
Thread Starter
Senior Member
Joined: Mar 2020
Posts: 253
Likes: 72
From: USA
2013 s550
I see on ChevronLubricants.com theres also a Techron High Mileage 12 ounce that treats up to 21 gallons recommended every 1000 miles on cars above 75,000 miles. $13 bucks ain't bad, I was buying the large Techron bottle at a Chevron station for about $19. Think I'll try the High Mileage version every 1000 miles. I drive a 2013 S550, it seems to have the same horsepower as the older S600 V12.
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
Never used the smaller size. Would be eager to hear how it works in your engine. Not sure how to compare the two products if labels are the same ingredients.
The other stuff I use in a can is LiquidMoly (MoS2) at every oil change. Once again, I scoffed at snake-oil but after one can in the engine; my very smooth engine was incredibly quieter. You cannot even tell the engine is running at idle.
Keep us posted on the high mile mini-Techron.
The other stuff I use in a can is LiquidMoly (MoS2) at every oil change. Once again, I scoffed at snake-oil but after one can in the engine; my very smooth engine was incredibly quieter. You cannot even tell the engine is running at idle.
Keep us posted on the high mile mini-Techron.
Junior Member
Joined: Mar 2020
Posts: 43
Likes: 8
From: Houston Metro
16 Acura RDX 128k mi 2013 MB E550 4M 124mi
P2097 P2099
if the adaptions show its on its limit trying to lean out the mixture - maybe an injector is dribbling.... (but the thread starts on the other side - then morphed to bank 1... so likely some other muddle up)
both 2097 and 2099 say
Once the PCM (power train control module - AKA engine management ECU) enters closed loop operation (where the amount going in is controlled via the readings of the CAT sensors), if the bank 1 or 2 downstream O2 sensor circuit input readings reflect too few oxygen molecules in the exhaust (aka its running too rich), a P2097 or P2099 code will be stored and a malfunction indicator lamp may be illuminated.
Read more at: https://www.obd-codes.com/p2099
Copyright OBD-Codes.com
both 2097 and 2099 say
Once the PCM (power train control module - AKA engine management ECU) enters closed loop operation (where the amount going in is controlled via the readings of the CAT sensors), if the bank 1 or 2 downstream O2 sensor circuit input readings reflect too few oxygen molecules in the exhaust (aka its running too rich), a P2097 or P2099 code will be stored and a malfunction indicator lamp may be illuminated.
Read more at: https://www.obd-codes.com/p2099
Copyright OBD-Codes.com
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