Tuning After Intake/Exhaust Install

[MJones_RB]

Hello all!

I'm going to be installing a TRD Intake and a Perrin 2.5" Resonated CBE pretty soon, and I'm curious about something. Is it recommended to get your ECU tuned after such an installation, simple as it is, or will the ECU adjust itself accordingly? I've seen recommendations for ECU tuning after turbo/SC installs of course, but not really for simple intake/exhaust setups.

Appreciate your input. Sorry is this is so easy.

Thanks!

[raven1231]

I wouldn't worry about it unless you get a header. Gains will be minimal either way and it's completely safe to run without a tune.

[Tcoat]

Originally Posted by MJones_RB

Hello all!

I'm going to be installing a TRD Intake and a Perrin 2.5" Resonated CBE pretty soon, and I'm curious about something. Is it recommended to get your ECU tuned after such an installation, simple as it is, or will the ECU adjust itself accordingly? I've seen recommendations for ECU tuning after turbo/SC installs of course, but not really for simple intake/exhaust setups.

Appreciate your input. Sorry is this is so easy.

Thanks!

The ECU will take care of it all for you. Can unhook the battery for a couple of minutes to reset it and speed up the process though.

[nelsmar]

Do you have to tune it? No not really for a TRD intake & cat back exhaust. Will you gain any power from bolting them on? Possibly, but minimal if anything at all. The throttle response might be slightly more crisp due to the TRD intake shifting the engine load under low load slightly advancing timing. Most of the gains you "feel" may be during the learning process and once the ecu neutralizes the gains may go away / stay. A lot of bolt on dynos show the best pull out of the car after reseting the ECU and letting it lean out / advance timing before any learning has started. So a lot of bolt on dyno's are skewed a bit... I have seen very few dyno's of a car with learning for a few tanks of fuel, then swapping parts, allowing learning for a few tanks and re-dyno with similar weather.

[MJones_RB]

Thanks! I have noticed that the car is beginning to "learn" my driving habits, adjusting itself, etc. I have even noticed the average mpg has changed since I started driving the car. Interesting technology these days. Much more than my old '96 Integra. Now if I could just figure out what that "shudder" is during idle...

[Koa]

Originally Posted by MJones_RB

Thanks! I have noticed that the car is beginning to "learn" my driving habits, adjusting itself, etc. I have even noticed the average mpg has changed since I started driving the car. Interesting technology these days. Much more than my old '96 Integra. Now if I could just figure out what that "shudder" is during idle...

Get an OFT and have some fun with your car for under $500. You'll learn a lot. Potentially blow your engine up (just kidding- kind of).. and are able to run E85 right off the bat. Best bang for your buck, imo.

[nelsmar]

Originally Posted by MJones_RB

Thanks! I have noticed that the car is beginning to "learn" my driving habits, adjusting itself, etc. I have even noticed the average mpg has changed since I started driving the car. Interesting technology these days. Much more than my old '96 Integra. Now if I could just figure out what that "shudder" is during idle...

It doesn't use anything to really learn your driving habits... it just auto corrects with long term & short term fuel trims to adjust to the target AFR. If you reset the learning values the AFR under full load tends to go lean. your 96 integra also had a basic version of this fuel trim learning. There is also ignition learning based off of two audible knock sensors that adjust the timing based off what it hears.