02 sensor caps out with AV gas

[kingcat162]

Any tricks to getting my 02 sensor to last longer then 4 days of riding - AV gas seems to nuke them quick

 

[RGM]

Any tricks to getting my 02 sensor to last longer then 4 days of riding - AV gas seems to nuke them quick

They don't like lead

 

[maierch]

Order some of this stuff. It’s a lead scavenger.

http://m.aircraftspruce.ca/catalog/...n2yUYzevOgoDXtkFucmoV_XipmBGM4jYaAlJZEALw_wcB
It ships from Ontario so it’s not too painful get here. Boost-it used to sell it. Not sure if anyone else in the west stocks it.

 

[fredw]

Not sure what kit your using it on, but impulse we found that snow after rolling sled can come up exhaust and cool sensor to quick cracking them..

impulse uses the a/f readings in there tuning, if it's happens to go bad there is a fale safe that ecm adds 6 percent more fuel to fuel curve..

 

[moyiesledhead]

Pre-heat helps. Can't remember how we set that up on my son's old TM1000 other than we added a battery. Warming it up before starting made them last a season rather than 3 rides.

 

[ktmsx350f]

Pre-heat helps. Can't remember how we set that up on my son's old TM1000 other than we added a battery. Warming it up before starting made them last a season rather than 3 rides.

Mall O2 kits should do an automatic pre heat.


Unless your running big boost don’t run straight AV. Also you can get different types of AV gas 100 with no letters after would be leased, 100LL is low led and 100UL is ultra low. AV straight burns slow and can give a over rich condition. Also AV buring slow give worst bottom end throttle response possible. Mix pump and AV and it will last a lot longer. At 8-10 psi I use 20-30% Av I’ve run as high as 16 psi on 50:50. I’ve had 7 boosted sleds and only ever changed 1 O2 sensors.

 

[Merc63]

Buy fuse 116 octane, no lead, mix with 94 and still have big octane for boost. O2 needs to be pointed down to drain moisture.

 

[cnelson6]

Like Maierch said decalin is the stuff you want to keep O2 sensors around if your using leaded fuel.

 

[bendy]

My 2016 T3 eats the bosch sensor almost immediately. This is my first 2S turbo with an A/F gauge, always used the Racepak prior to this sled. I've also had three 4S turbos. None of them ever burned a sensor and I used Av gas in them. I believe its the 2 cycle oil myself?

 

[maxwell]

My 2016 T3 eats the bosch sensor almost immediately. This is my first 2S turbo with an A/F gauge, always used the Racepak prior to this sled. I've also had three 4S turbos. None of them ever burned a sensor and I used Av gas in them. I believe its the 2 cycle oil myself?

how do you know its toast? nothing reads on the guage? ive been having good luck with NGK sensors and C111

 

[Merc63]

You CAN NOT run leaded fuel with o2 sensors. Also the sensor needs to be pointed down slightly so that it doesn’t collect moisture, fuel, oil, etc. Call Bosch and ask them if you don’t believe it.

 

[maxwell]

You CAN NOT run leaded fuel with o2 sensors. Also the sensor needs to be pointed down slightly so that it doesn’t collect moisture, fuel, oil, etc. Call Bosch and ask them if you don’t believe it.

educate me im a little weak in this department. what fuels contain Lead. just AV?

 

[bayman]

Been running a bosch O2 sensor for 2 years on a sled that runs straight av gas. If I can continue to get 2 plus years on a $100 sensor, i'll take it.

 

[mikeydoo]

.....

 

[HotShotHarry]

I am getting about a 1000 miles out of my Bosch o2 sensor on a 14,Pro boondocker.

 

[Merc63]

Most Vp race fuels, lots of race fuels have lead, Sunco, fury, etc. Just need to read the label. Fuse has a great unleaded, high octane race fuel. I buy it in the big drums and mix with husky 94 50/50 and still get 100+ octane.

Yea some sensors might last a bit with leaded fuel, but eventually they will fail and or start reading wrong. Some last a few hours, some months. If you’re just watching the AFR for the sake of monitoring it, no harm. But if you run a closed loop control system with o2 feedback, you’re playing with fire, especially under boost.

The sensor doesn’t have to completely fail for it to start reading wrong because of lead. That’s what I’d worry about, you’re adding or removing fuel chasing a condition that doesn’t even exist, juggling your engine in the balance.

 

[turboetech]

Hey Merc what you burning the corn in?? I would not burn husky ethanol in my lawn mower..... Fuse 116 is unleaded race gas and I burn it in my race truck and my turboed 850 doo

 

[Merc63]

Mercedes C63 with a whipple 2.9, 900hp at 12lbs boost with fuse/husky. All I run is husky 94 in it on the street, it loves it. Ethanol is a great fuel. Wish I could run E98 but my fuel system is maxed out already.

 

[NoBrakes!]

Mercedes C63 with a whipple 2.9, 900hp at 12lbs boost with fuse/husky. All I run is husky 94 in it on the street, it loves it. Ethanol is a great fuel. Wish I could run E98 but my fuel system is maxed out already.

one hell of a grocery getter

 

[turboetech]

When I was running big four stroke yamaswapper turbo sleds I always carried spare sensors and ran av gas... nytro and nypex... lead will chew them up