Ecu For 99 Rs4s

[d1_drifter]

The front mount will be fine. Doesn't really have any effect on your emissions.

RED513 is right on the money. Cat and o2 sensor checks and you'll be right to go.

Unless you have drastically changed the amount of fuel (injectors) or air (turbo), then you have no need for an aftermarket ecu. (for emissions, of course. Always power benefits from a tune! )

[Brendan&Ana]

The front mount will be fine. Doesn't really have any effect on your emissions.

RED513 is right on the money. Cat and o2 sensor checks and you'll be right to go.

Unless you have drastically changed the amount of fuel (injectors) or air (turbo), then you have no need for an aftermarket ecu. (for emissions, of course. Always power benefits from a tune! )

nah only mod is fmic and exhaust had pod but put standard airbox back on

how do i know if the cat thats on there is good enuf

[wolverine]

I think you need to speak to whoever you want to tune it before making any decisions.

Nistune is the no-brainer IF you need to make fueling/ignition changes to pass. A PowerFC will do the job but at a higher cost.

[KiwiRS4T]

Power FC $1500 Link $2000 ++

Nistune chip c$350 + fitting and tune will be perfect for your car.

But looking at your mods just a high performance cat should do the trick with the stock ecu.

[Brendan&Ana]

hey guys had car emissions tested and it bombed out real bad so im thinkin of just doing what the tuner said and get the aftermarket ecu but he also said that nistune will not have the paremeters that i need 2 get it to pass

any one know where i can get a power fc

or does any one know anything about microtech as they are in my area and will install 4 1400

[QWK32]

nistune and power fc are very similar, just the power fc has more resolution in the maps. nistune will do fuel & ignition, closed loop corrections, after start / cold start and acceleration enrichment, what else do you need to get a good tune to pass emissions. microtech are alright, but its not an ecu i'd be picking, especially for an emissions pass.

[KiwiRS4T]

Get another tuner! Nistune will tune your engine fine. When you say bombed out on emissions test what was the problem? Do you have any numbers, readout? Did you replace the cat convertor? With an almost standard car its ridiculous to be telling you that you need a Microtech.

[wolverine]

I agree the Nistune will get through emissions if tuned well enough.

I am happy to sell you my PowerFC for $1500 if you want....but I would feel like I am taking advantage of you.

Picking the brains of a different tuner might be worthwhile.

[Brendan&Ana]

Get another tuner! Nistune will tune your engine fine. When you say bombed out on emissions test what was the problem? Do you have any numbers, readout? Did you replace the cat convertor? With an almost standard car its ridiculous to be telling you that you need a Microtech.

ive got a read out here somewhere ill have to scan it and post it and no i didnt change the cat the exhaust place said they only put cats on that meet australian standards and yeah the tuner is saying power fc but i think h just wants to try n make some extra money out of me wants 2 charge me 2500 then tuning on top

[Brendan&Ana]

emission test data

[pipster11]

try and find out what make the cat is

x-force cats are notorious for their poor performance (both power and emissions wise)

catco and metalcat are supposed to be good tho

and x2 on the nisstune being as good if not better for emissions

have you changed your o2 sensor while you have owned the car? if not, replace it asap its probably the main reason it failed the test cos the ecu can't see how rich its running

[d1_drifter]

Actually a "lean" tune will fail the IM240 test.

The tune must be such that the levels of CO, hydrocarbons, and NOx gasses are all within regulations.

A lean tune will fail just as hard as a rich tune will.

As quoted above, it's not about how filthy rich your tune may be but the gases that are created by the combustion of O2 and fuel.

It is imperative that you have a catalytic converter that is able to convert the gases into other gases that aren't measured in the IM240 test.

This is why decat pipes are illegal and carry a hefty fine for emissions.

[fat-lad]

hey guys had car emissions tested and it bombed out real bad so im thinkin of just doing what the tuner said and get the aftermarket ecu but he also said that nistune will not have the paremeters that i need 2 get it to pass

any one know where i can get a power fc

or does any one know anything about microtech as they are in my area and will install 4 1400

you know what i think about this bloke man, just get nistune!!!

[lilcrash]

This thread makes me angry. The tuner obviously just wants to make money out of your lack of knowledge. Just buy a cat and stop believing people who can make money off you

[32TAXI]

1. O2 sensor !!!

2. New Cat !!!

3. stock ecu !!! (reset after o2 sensor install)

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