It's APX from TT. Small port non VVT head. But there is not much of the engine left because it has the crank from S3, forged rods and forged 1mm oversize pistons.What is your engine code?
Great, this is a good tip. Thanks.I would upgrade from narrowband lambda to wideband and use a wideband ME7.5 ECU instead. VEMS is not the best choice for these cars, since its drive-by-wire throttle support is not good at all. Your car will also need some CAN messages from the original ECU for the ABS and Haldex to work properly.
I'm from Latvia. And yes I have FBTomsko, where are you from? and are you on FB?
Ok! I will try to find someone to tune Ignitron nearbySearch on FB for the Ignitron ecu Users group
I see, Badger can you confirm this?Badger5 ATE380 hybrid comes with a V2.2 TIP you can't fit your V3 onto the compressor housing as the billet from the v2.2 is part of the turbo.
I'm pretty sure my car is a frankenstein all the way so it's no point checking just the old engine code, which I don't know honestly. But the car is S3 from 1999 with 20mm piston pin and non VVT headYou were chatting with me on messenger. The APX TT engine uses narrowband lambda by default. What is the model year and engine code of your car?
So will a different TIP physically fit on the compressor part of turbo or will I have to manufacture a custom solution?K04-380 with TIP does not fit lhd cars...
no room because of brake master cylinder/servo etc.
I'm pretty sure my car is a frankenstein all the way so it's no point checking just the old engine code, which I don't know honestly.
It's 4 wires, so narrowband. I'm looking into the wideband conversion and it seems like a lot of headache..OK, i see. You need to check if it is wideband or not then. 5wires going to the pre cat sensor is wideband, 4 is narrowband. 99 S3s were equipped with APY 210hp engines, which use narrowband lambda by default.
I see. I saw some people adding resistors to fake an optimal VVT and EGT signal, since most wideband ECUs have them. I don't. This made it look too difficult. But to my understanding not faking the signal will anyway result in just an error code anyway, I can live with that.You only need 2 additional wires (wired in to the ECU) and a different connector (which can be sourced on ebay) + a wideband lambda of course.
narrowband is closed loop on idle/cruise but not WOT like wideband is...Are both wideband and narrowband closed loop?
If you plan to use the wideband map from an K04 turbo'd S3/TT you will need to code EGT out of the map... you can't use a resistor... or just wire the EGT in as its used as part of fuelling and protection... VVT helps spool if used...
You use a map from an AUM which is wideband with VVT but doesn't have EGT... you will then need to scale the MAF sensor to suite the larger S3 one and you will need to swap the MAF sensor to the wideband version as they differ between non-wideband and wideband setups
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So after all it might have been my tuner who blew up the engine thinking it's wideband and always closed loop..?!narrowband is closed loop on idle/cruise but not WOT like wideband is...
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Personally I'd fit the sensor... K04's run hot and having the extra protection is a nice thing to haveI see. Coding out EGT from S3/TT map sounds easier
So after all it might have been my tuner who blew up the engine thinking it's wideband and always closed loop..?!
Ok. I put it in downpipe not exhaust manifold I assume.Personally I'd fit the sensor... K04's run hot and having the extra protection is a nice thing to have
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if you have the k04-380 with the billet built into it, it will not fit lhdSo will a different TIP physically fit on the compressor part of turbo or will I have to manufacture a custom solution?
I see. So it's not just a swap in-out and rewrite the software job.someone on here manged to get a Passat ECU working for an S3, maybe try and find that thread.
are you going to update them to immo defeated?
my current hybrid turbo does not have spot for the EGT sensor. Ok, so downpipe it is.Put EGT either in the factory position in the hotside assuming you have a hotside that can do this (the AET K04-380 should have the EGT bung ready) or the downpipe...
Adding it to the manifold is not very practical as you will need special weld rod to weld a boss in... the collector area is quite small and gets very hot so why add a potential point of failure...
You can tweak the EGT temperature setting in the map depending on where the probe is anyway...
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