decent narrowband lambda for single turbo

Okay

i have done a single turbo conversion and have a aem wideband in the down pipe but the aem does not give out a norrow band simulation signal the supra likes, So i put in a universal cheap rubish one that worked fine for a couple of months but now has given up the ghost, i did have a almost brand new stock o2 but the flange wont fit on the down pipe hole i have.

so are there any narrow band sensors that are good and are the normal threaded type? i see the deso type for the mkiii are like this would they work with the tt http://www.ebay.co.uk/itm/Lambda-O2-Oxygen-Sensor-TOYOTA-Supra-3-08-1990-04-19-/330428723608?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4cef163198 image has no flange but i think the mkiii is flanged.

where can i get a deso or the like with just the thread not the flange?

i dont really want to rip out the aem right now,but how much are the other widebands that simulate narrowbands that work?

Depending what ecu you`re using you don`t need o2 feedback, my afr`s are perfect with aem ecu.

http://www.rockauto.com/

I saw that other people have used this place to get 02 sensors before and the standard push in flange types can be brought/ delivered for just over £80 for 2 which is cheap when you consider the delivery cost/ import tax ect.

Just ditch the AEM and get an innovate. It has 2 channel outputs, narrow and wide.

yes should of explained abit better i have a aem fic its a atuo supra so still need a narrow band signal for the stock ecu to keep it a stoic when off boost, yes i know the fic is complete rubish and should of reasearched but was told it works great but it does work Just lol.

Just ditch the AEM and get an innovate. It has 2 channel outputs, narrow and wide.

i was starting to think this as well, if i knew then what i know now would never of touched anything aem, would love to rip all the aem stuff out but have no spare cash

The AEM does give out a simulated narrowband signal, if it's the Uego that is. It's the white wire and I used it on mine.

The AEM does give out a simulated narrowband signal, if it's the Uego that is. It's the white wire and I used it on mine.

The AEM does give out a simulated narrowband signal, if it's the Uego that is. It's the white wire and I used it on mine.

guys i did try this and failed it wouldnt idle at 14.7 then i researched at aem and found even they says rubish at the simulation! so have you 2 guys proven it to work with the supra

http://mkivsupra.net/vbb/showthread.php?258214-wide-band-wiring-into-stock-ecu/page2

If I were you , I would talk to RyanG ; I am sure he can advise you! It might be cheaper in the long run to get a Syvecs ECU, nearly sure I read he has it running the Autobox now

If I were you , I would talk to RyanG ; I am sure he can advise you! It might be cheaper in the long run to get a Syvecs ECU, nearly sure I read he has it running the Autobox now

yeah he can mate, but £80 sensor or £1,500 for a running syvecs the fic is now set up as good as it can be with timing safely backed off

guys i did try this and failed it wouldnt idle at 14.7 then i researched at aem and found even they says rubish at the simulation! so have you 2 guys proven it to work with the supra

http://mkivsupra.net/vbb/showthread.php?258214-wide-band-wiring-into-stock-ecu/page2

I had it running on my Aristo no worries with a T67, and as we all know, the Supra has the Aristo engine so it should be fine

yeah he can mate, but £80 sensor or £1,500 for a running syvecs the fic is now set up as good as it can be with timing safely backed off

Can Ryan not look at your AEM for you or maybe get some advice on what Lamda to use?

I had it running on my Aristo no worries with a T67, and as we all know, the Supra has the Aristo engine so it should be fine

how did you wire it then mate cos i couldnt get it to work?

and was it the older type i think there is 2

I didnt wire it in, somebody else did, but it was as easy as taking the white wire from the Uego harness and splicing it into the white signal wire that goes to the ECU

Yeah i did it that way wouldnt have it, but i did not cut the wire i just unplugged the stock sensor and spliced at ecu.

You have to just disconnect the signal wire and connect the white wire from the AEM, the heater circuit must remain connected or the ECU throws a fault, i suspect that may be your problem.

The O2 probe input to the ECU was cut, the narrowband output was spliced into the wire to the ECU. All I can say is thats how mine was set up and it ran without issue.

You have to just disconnect the signal wire and connect the white wire from the AEM, the heater circuit must remain connected or the ECU throws a fault, i suspect that may be your problem.

thats exactly what i done, but there was no o2 sensor fitted, so are you saying that the stock o2 has to be still conected and just the signal wire to the ecu fit the wide band.

The O2 probe input to the ECU was cut, the narrowband output was spliced into the wire to the ECU. All I can say is thats how mine was set up and it ran without issue.

was your stock o2 still in place?

No, the wideband probe was the only source of narrowband output.

thats exactly what i done, but there was no o2 sensor fitted, so are you saying that the stock o2 has to be still conected and just the signal wire to the ecu fit the wide band.

Signal (white wire) from AEM connected to the ECU std lambda in, (std signal wire cut and sealed) i left my std lambda in place, but kept the heater circuit still connected.

I suspect that if the ECU sees a lambda heater circuit fault it will ignore the lambda signal input, and run a default map, which would explain why you cant get it to run right.

intresting that the pair of you have different veiws on it connected and not, no harm in trying agiain with the failed o2 still conected and in place will be alot easier this time as all the wires are now in the passenger foot well

i will update tomorrow after i have given it another go

Haha mine wasn't an opinion, it was a fact

Haha mine wasn't an opinion, it was a fact

So was mine! except i didn't use an AEM wide-band.