O2 sensor part# for closed loop

[Richard Hodgins]

The issue I had was ECU Master. One just quite the other made strange the whole time it was in use. Sometime seemed right other than taking five minutes of driving it at 6000 rpm to come of of 14.8
If you bought an ecu master last ,January , making strange I’d say change the module, it should be a warranty item

It took the fun out of quite a few rides as your staring at the gauge questioning if it’s working or not

I never did get an answer to the question if it read 14.8 in a false reading for extended periods of time , is it compensating by adding more fuel?


For what it’s worth right now if I was tuning another sled I would have a hard time to spend the extra money. That might change but I doubt it

I have the ECU master as well. What 02 sensor did you end up getting?

 

[THEPASMAN]

I have the ECU master as well. What 02 sensor did you end up getting?

Sorry I thought it was an aem that I had the issue with but reading this thread I have the ecu master

Not sure what o2 sensor came with it

What ever hurricane supplies. The replacement was on warranty or goodwill from hurricane

Sorry for the confusion

 

[Hammer Down]

Amazon.com

 

[sideshowBob]

A friends SW went through two ECU faster modules that failed before getting an AEM module that has worked fine for all of last and this season now.

 

[Richard Hodgins]

A friends SW went through two ECU faster modules that failed before getting an AEM module that has worked fine for all of last and this season now.

I think I will get an AEM module in that case. Mine is an ECUMASTER

 

[hpmaniac]

Dealing with this right now, On my second ecu master unit, have seen the closed loop work one time in the shop for about 10 seconds on a fully warmed up machine running for 5 minutes on track stand. From my research the ecu master stuff is NOTHING but issues. Should be called ECU DISASTER.

 

[fatchance]

Try this one. Haven't had any trouble with them at all. https://www.summitracing.com/parts/AVM-30-0310

 

[REDLINE 1]

Dealing with this right now, On my second ecu master unit, have seen the closed loop work one time in the shop for about 10 seconds on a fully warmed up machine running for 5 minutes on track stand. From my research the ecu master stuff is NOTHING but issues. Should be called ECU DISASTER.

Have one on my sled so far so good. Haven’t had any problems

 

[Turboflash]

Looks like O2 sensor is same as what most use - Bosch LSU 4.9.
Be aware of things that shorten sensor life. For example, starting cold sled, running it for only a couple minutes, then shutting it off. Doing this repeatedly. Storing sled in humid environment (condensation on sensor). ANY gas or additives/treatments that contain lead (ie race gas, some octane boosters, etc).
You can buy genuine oem 17025 Bosch sensor on eBay for about $23. How good can they be? Lol

 

[sideshowBob]

Av gas [100 LL] is great for blending with premium fuel to increase the octane a few points but I have found that most sleds don't run well on pure AV gas and I avoid it on anything but old school two strokes as 100 LL AV gas is also VERY high lead content and even small amounts blended in fuel destroys O2 sensors very quickly.

 

[REDLINE 1]

Looks like O2 sensor is same as what most use - Bosch LSU 4.9.
Be aware of things that shorten sensor life. For example, starting cold sled, running it for only a couple minutes, then shutting it off. Doing this repeatedly. Storing sled in humid environment (condensation on sensor). ANY gas or additives/treatments that contain lead (ie race gas, some octane boosters, etc).
You can buy genuine oem 17025 Bosch sensor on eBay for about $23. How good can they be? Lol

If you buy a sensor from a outside source is it plug and play or do you have to change the plug to fit the aem or ecu master module?

 

[sideshowBob]

If you buy a sensor from a outside source is it plug and play or do you have to change the plug to fit the aem or ecu master module?

I purchased a few O2 sensors from Rockauto...Bosch 17025 and they are plug and play with my AEM module.

 

[Davidonmars]

ive had the best luck with bosch 17212

 

[sideshowBob]

ive had the best luck with bosch 17212

I believe the 17025 and 17212 use the same 4.9 sensor, are five wire, but the wiring harness is shorter on the 17212 and the 17212 was designed for diesels with higher egts so maybe its more robust?
My Ram 3500 HO Cummins uses the 17212 sensors.

 

[Davidonmars]

I believe the 17025 and 17212 use the same 4.9 sensor, are five wire, but the wiring harness is shorter on the 17212 and the 17212 was designed for diesels with higher egts so maybe its more robust?
My Ram 3500 HO Cummins uses the 17212 sensors.

the 212 is about 2” shorter, I’ve been running the 212 in my cars for a couple years and they haven’t failed yet unlike the 17025. Same plug and everything, person that put me onto the 212 figures because it was made for a diesel it’s likely more robust and seems to be the case.