Ok. I just installed the AEM Failsafe (still waiting on the turbo)...
Question is what are the baseline values for the A/F mixture throughout the RPM range? I'm trying to set the upper and the lower limit for the alarm activation.. SS is not running at the moment so I won't be able to take it out for a drive it..
AEM Failsafe
-
-
Once you get the turbo in run a Auto Set up after a few full boost runs, it's on the right side of screen. I then had to move up the Zero and below levels to 18.5 to stop the false alarms on downshifts etc.
-
-
sweet . Thanks !
-
I'm looking to pick up the AEM AFR. Anyone know of a good site?
-
Same price everywhere
Try DDM they are a reseller of AEM
-
Thanks
-
can someone take pictures or some how let me know where abouts they are installing the o2 sensor that comes with the aem failsafe.may i add i need some one who is running turbo with the street exhaust not the side exit also running alpha turbo
-
Anywhere 6-12 inches after the turbo.
Put up a picture of the exhaust and we will point out a good place to install it. -
so any ideas where because i believe my only option is to go side exit
-
You have to install it before the muffler. In your case it will need to be as close to the muffler as you can get it. I think I see a spot where i put the yellow circle. It can be a few inches from the turbo. I would have to see better pictures of the exhaust side of the pipe. All I can see is the wastegate dump pipe in these pics.
-
-
those are the best angles I could get I guess now looking at it I should be able to throw it somewhere on that elbow.i just thought the sensor had to be further to get a correct reading
-
Both of my sensors are that close. You will be fine with the wide band there.
-
And keep the angle more than 10* above horizontal.
-
They recommend farther back because it is hotter as you get closer to the turbo. This means your wideband sensor will likely fail quicker from extreme heat because it is so close.
Not much you can do in your situation. Run it as far back as possible and realize if you get weird readings down the road that you toasted that sensor and need to get a new one.
-
thanks for the replies greatly appreciated
-
Trav is correct about it being a bit hot. But it should last at least a couple years. Then all your replacing is the sensor. It's a $90.00 sensor. I accidentally dropped my sensor onto the concrete and found the exact Bosch replacement. Live and learn. Just put it as close to the muffler as you can and you will be fine. We're talking about very very very subtle differences in the reading. Absolutely not enough to be worried. Like Trav mentioned it's just going to slightly shorten the life of the sensor.
And even the lifespan shortening is questionable because our little engine doesn't get the turbo cherry red like a lot of high output machines do. And I have seen them run the same O2 setup.
-
thanks again rab sounds good I'm just gonna slap it in there next chance i have