Do i need a lambda sensor

[Gpro]

I recently converted to single turbo and my downpipe doesn't have a 2 bolt lambda sensor flange only the screw type ones. The car is running on Greddy Emanage Ultimate i have driven it to exhaust shop to adjust the downpipe with no lambda sensor plugged in and the car was fine. Do i really need it? (Also i have a AFR sensor in the downpipe already)

[mellonman]

does the untimate have the feature to use the wide band to keep at stoick

[Gpro]

i believe yes it does. but just found some lamda sensors that are screw on so i will properly just replace it with that (My down pipe has 2 screw type sensor flanges on it)

It should be fine shouldn't it?

[Shane]

i believe yes it does. but just found some lamda sensors that are screw on so i will properly just replace it with that (My down pipe has 2 screw type sensor flanges on it)

It should be fine shouldn't it?

 

You know, I thought all if not most lambda sensors like the bosch one are the screw type. The 2 bolt sensor is normally cat overheat sensor I think. You can sometimes use that location for a EGT sensor, but would need to make a small plate up.

[mellonman]

i believe yes it does. but just found some lamda sensors that are screw on so i will properly just replace it with that (My down pipe has 2 screw type sensor flanges on it)

It should be fine shouldn't it?

 

this is exactly what i done

http://www.mkiv.co.uk/vbb/showthread.php?262641-n-a-lambda-in-tt

Edited May 16, 2013 by mellonman (see edit history)

[Noz]

I'm running ultimate on my NA-t. I just removed one sensor and connected both wires to the single sensor in the pipe. Could this not also be done for the TT.

[Gpro]

so far am leaning towards just getting a screw on one easier the welding a flange.

Would it work if i was to tab in to the wiring of the AEM AFR sensor ? Instead of having 2 sensors

[Noz]

I'd stay with using a narrow band sensor. The AEM will be a wideband. I'd keep it the same, the stock ECU might throw its toys out if the sensor isn't designed for purpose.

[mellonman]

I'd stay with using a narrow band sensor. The AEM will be a wideband. I'd keep it the same, the stock ECU might throw its toys out if the sensor isn't designed for purpose.

 

my wide band wouldnt even work as a narrow simulator as you say and the stock ecu still acted as not connected , hence why i put in another stock sensor just with a thread in the down pipe

[Gpro]

Already thank you for your help i will get a screw type lambda sensor

[Tricky-Ricky]

Don't forget that with the EMU you are using the std ECU for most of the closed loop areas IE lambda feedback,

although you can feed a synthesized narrow-band signal to the ECU i have found the std ECU prefers a strait feed from the std sensor,

and in any case its pretty much a waste of time trying to fight the std ECU with settings changed within the closed loop areas using the EMU without some form of lambda tweaking.