If you fit an afr meter to your car.do they go were the 02 sensors use to go or do i need to buy some hole things and get my exhaust man to weld them in somwere.

The sensors don't last very long if you put them where the stock narrow-band sensors go. Plus, you'll lose lambda feedback functionality.

 

O2 sensor bungs and welding them in the downpipes works well. Perpendicular to the flow, above the horizontal.

 

Let me know if you need an AEM dual wideband kit :)

So i need some bungs then and cant i weld the bung thing at the very beging of the 3" test pipe or is that to far back. And if they have to go on the down pipe whitch side if the split dp do they go.and i still realy like that idea of having that new kit.srg1 or somthing.but it only has one sensor for one bank. But it also does double up as a boost gauge all rolled into on neat package. So in torn at the moment.also having two sensors means two gadges, more clutter.anyways any pics for best place for them the holes that is and what these things called so i dont order a box of half inch holes.lol cheers Noel.

Right i spoke to my welder man and he has both bung things in stock just needs to know what size to use. I think he said there norm 17mm.

There's this really cool website that let's you search this kind of stuff, think it's called oogle or similar :)

There's this really cool website that let's you search this kind of stuff, think it's called oogle or similar :)

 

Dont need to search jaffa cas i got you lot to ask. Who know. Why ask google when i can ask you.lol

Done google and now getting more confused.what to do and were best to put.

Here you go instructions form my AEM that I'm fitting next week

 

 

STSM-LRCBLU15042312000.pdf

Ok Bigh so approx 18" away from the manifold thats queit a distance. So if i havnt got cats then i could then in theory put the about a couple inches away from the studs and nuts at the beging of the the test pipe? Or is it best mounted on the bottom of the dps .but my dps are split so im still thinking possible better more aqurate reading once the gases from the split dps have merged . Whith will be right at the bottom of the dps or on the beginng of the test pipe.

I will take a picture of where the standard holes are in my dps. Unfortunately the angle of the hole is incorrect ( as far as the AEM instructions are concerned) as my sensors would be angled downwards, rather than the 10 degs or greater as in their manual. From memory the holes in the drivers side pipe is opposite the starter motor shield, so the senor wouldn't clear this. 18" I would hope will be in the beginning of my test pipe. I will get some pictures over the weekend when she's in the air, so hopefully this will help you.

Bigh. Thanks mate .ill explane myself buy my pics.

Oh pooh.bloody hell right in this pic the top red pen is the top end and that whole is were the 02 sensor go.

I could put it were the yello torch and cross is at the bend of the exhaust end and at that angle of how the yellow torch sits. Or were the grey pen sits at the front end bend were the gases mixes at the bottom of the dps were the gases mix with that whitch come from the tubs.also at this angle or have i got it all wrong?

That's more like 8" rather than 18" bud.

That's more like 8" rather than 18" bud.

 

Ok if thats the case ! well not strictly true, i could poss get away with the bottom one further away. This is why im after some pics of were best to put.like i said before probly better of in the test pipe .although this would be about two plus foot away from the tubs. Some even go as far away as mounting then in the h pipe. But its two far away and the gases are doing diff stuff that far down the line. And that far down the pipe theres going to be mixed readings as the condensation that gathers

.

Did you get that number (18") from the AEM installation guide? If so is follow thier recommendations. And put it 18"/45cm away from the manifold, at a guess that's about a third of the way down the front pipe not in the turbo elbow at all.

Follow the instructions in the kit you bought. Why are you trying to fit a bung in the turbo elbow close to the turbo outlet when there is an entire exhaust system to work with?

Ok if thats the case ! well not strictly true, i could poss get away with the bottom one further away. This is why im after some pics of were best to put.like i said before probly better of in the test pipe .although this would be about two plus foot away from the tubs. Some even go as far away as mounting then in the h pipe. But its two far away and the gases are doing diff stuff that far down the line. And that far down the pipe theres going to be mixed readings as the condensation that gathers

.

 

The gases aren't doing anything differently other than cooling, expanding & travelling at a slower rate. Fuel content does NOT alter depending on the distance from the head unless there is an exhaust leak pre-sensor.

 

Condensation is an issue due to thermal shock once the engine is started and the sensor is already up to temp. It is also considered a contaminant, hence you position the sensors above the horizontal so condensation cannot enter the sensor. No such thing as "mixed readings".

Noel stop fk.n about and just tell me were u want the sensor wholes drilled.?

Can you mount a single wide band lambda in the crossover section in the mid section then?it gives you the mix of both banks then???

Noel stop fk.n about and just tell me were u want the sensor wholes drilled.?

 

:confused1:

 

Excuse me?

 

I gave you the answer 38 minutes after you posted this thread. 1 week ago.

 

Along with the instructions in whichever kit you've bought, I'm not quite sure what else is needed to be said...

Edited April 23, 201510 yr by Noz

Can you mount a single wide band lambda in the crossover section in the mid section then?it gives you the mix of both banks then???

 

It pays to monitor both banks, the offside typically runs slightly leaner (approx 0.3:1) than the near side.

 

I also don't think the exhaust flow in the crossover section will lend itself to accurate readings.

It pays to monitor both banks, the offside typically runs slightly leaner (approx 0.3:1) than the near side.

 

I also don't think the exhaust flow in the crossover section will lend itself to accurate readings.

 

Thank you it was just a thought rattling around in my head. Thanks for clarifying.

:confused1:

 

Excuse me? Joke mate! Dont take affence as none intended dude.appoligise if i affended you.

 

I gave you the answer 38 minutes after you posted this thread. 1 week ago.

 

Along with the instructions in whichever kit you've bought, I'm not quite sure what else is needed to be said...

Oh and just to say that i havnt got any peace of kit yet as i havnt decided whitch best route to go down

So i have no instruction. I just thought it would be a good idea whilst these parts are off my car and i could leave them with my exhaust man to weld in. So the wholes are in place already for when i decide the best route to go.

So thats why i just wanted a best place to mount it. I really did like the new srg/1 with its built in boost controller and would have bought that but its only got one censor and i have learnt that why you can mount one censor it would not give you a reading of both banks.and you need two ideally in case you had a jodgey injector or somthing.

Whos got what wideband controllers.?