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AFR Ratios?


Soonto_HAS_soop

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Could this be the first one we have seen (as a club) with a very reduced life span due to running it too close to the turbo? AEM Suggests placing it 3 foot away from the turbo outlet.

 

Mine is mounted in the position of the second sensor of a UK spec (as I got CW UK spec 2nd De-Cat pipe), is this too far away for the sensor to work properly?

I'm going to extend the range of my gauge by a few points to make it 9.0 to 19.0 and then turn off the maximum alarm function, then I will have to have a play with my emanage, as I got a reading of 9.8 whislt playing yesterday.

 

Also, for reference, the Innovate WB uses a Bosch sensor from a VW, so you can get cheaper replacement sensors.

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Also, for reference, the Innovate WB uses a Bosch sensor from a VW, so you can get cheaper replacement sensors.

 

VW's have widebands now? :blink: Not entirely disputing it what with the emissions regs getting ever tighter, but have you got any more info on that?

 

-Ian

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VW's have widebands now? :blink: Not entirely disputing it what with the emissions regs getting ever tighter, but have you got any more info on that?

 

-Ian

 

Well it had a Bosch logo, and what looked like a VW stamp and part number, when I am under the car next I will take the details down off of the sensor and post them up.

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Mine is mounted in the position of the second sensor of a UK spec (as I got CW UK spec 2nd De-Cat pipe), is this too far away for the sensor to work properly?

 

Im not an exprert, but the only problem I see with it that far south is a little lag, but then again how long does it take the gas to travel that far.

 

I put I thread up some time ago about sensors being mounted too close to the turbo, the AEM instrustions recommend 36 inches away from the turbo or the sensor lifespan will be shortened. As most people with a single that ive seen have the sensor mounted less than 6 inches away its a possibility the the sensor (cj's) could well be dead.

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Im not an exprert, but the only problem I see with it that far south is a little lag, but then again how long does it take the gas to travel that far..

Could be more than you think.

Having a WB in the 'normal' position and one at the exhaust tip on a RR, I remember a lag of several seconds, which is suprising perhaps if you know the speed of exh gases.

 

 

I'm not sure you can use the widebands from the new VWs.

They may need calibrating first. The replacement AEMs claim to be recalibritated individually, accuracy down to 0.1 AFR

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I have my AEM WB half way down my HKS 2nd cat replacement pipe. If I blip the throttle the delta in O2 reading is, well to my eye, instantaneous.

 

About the same place mine is, it's directly under the gearstick. There is about 0.2s lag in the datalogs, maximum. My WB sensor is over a year old now and it's seen a deal of overfuelling but it's still running OK. Maybe CJ's sensor has failed because it's too close to the turbo but don't forget we don't even know if the O2 sensor has failed yet :)

 

-Ian

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... Maybe CJ's sensor has failed because it's too close to the turbo but don't forget we don't even know if the O2 sensor has failed yet :)

 

-Ian

As soon as I get my finger out and buy a lemon (so to speak) the sooner I can let you know what the problem is.

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I'm not sure you can use the widebands from the new VWs.

They may need calibrating first. The replacement AEMs claim to be recalibritated individually, accuracy down to 0.1 AFR

 

The innovate motorsport gauige and sensor have to be calibrated before they go into the car, but can then be calibrated at any point after that by simply pulling the sensor out and recalibrating it in free air. You are also able to recalibrate it depending on your location in the world, i.e. if you go to a dyno that is 10,000ft above sea level, and you are used to driving around at sea level - it really is a clever bit of kit as it calibrates itself to the free air which is standard at 20.9 I believe.

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  • 1 month later...

Firstly TRD, I can help you tune it when you get it installed, what is it that you actually want it to do? I found the software quite simple to use (not saying that you are simple :D) The only bit that took me a while to do, was to chage all of the LED colours when I changed the scale.

 

V, yes I would recommend it, especially the ease of fitting the gauge, it's less than an inch thick. I've installed mine in the facelift standard boost gauge location, took a bit of cutting plastic but looks cool and is easy to see. Only thing I didn't really like, was the fact that you have to fit all the electronics outside of the cabin. Mine is tie clipped up under the body just behind the gearbox, supposedly water proof, but still a little weird.

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