ok, this is what i'm thinking. With a cold air intake u stick more air into the combustion chamber. wouldn't it be benefitial to make the car run a little bit richer? Is there a screw to do this? Or would the efi automatically take care of that?

the map sensor will take of it during idle/part-thottle conditions. at WOT the ecu will enter closed loop mode where it will read pre-programmed maps. the programs already run rich fpr safety reasons. if you didnt know, running rich makes you lose power. the most power is made at the leanest possible conditions without detonation.

Originally posted by GSR
running rich makes you lose power. the most power is made at the leanest possible conditions without detonation.

why is that?

the most power is made at the leanest possible conditions without detonation how do you make sure that it runs at the leanest possible conditions?

hotter/complete combustion.

dynotuning. which would be a big waste for just a cai. i/h/e or 15hp whichever is least doest justify spending so much $ on tuning for such a little gain. just keep the stock fuel setup and settings and save your money for something worth it

The ECU in the car has the ability to adjust for minor modifications such as I/H/E. It's when you start dealing with stuff like cams. If you want to make sure the ECU is taking your mods into account do this. Pop the hood. In the fuse box under the hood pull the fuse for the ECU. Leave it out for a while and try to start the car. Put it back in. Start the car and let it idle for a few minutes. If I'm wrong on any of that correct me. That's just what I've heard.

Originally posted by sameintheend01


why is that?

simply put... there is more fuel to burn in the same amount of time.

Originally posted by york2600
The ECU in the car has the ability to adjust for minor modifications such as I/H/E. It's when you start dealing with stuff like cams. If you want to make sure the ECU is taking your mods into account do this. Pop the hood. In the fuse box under the hood pull the fuse for the ECU. Leave it out for a while and try to start the car. Put it back in. Start the car and let it idle for a few minutes. If I'm wrong on any of that correct me. That's just what I've heard.

And make sure when you do this you know th code to your stock stereo or you will buy a cd player sooner than predicted :p

Originally posted by Melt


you will buy a cd player sooner than predicted :p

yeah, that wasn't a pain in the ass to finally get fixed....

you need to make sure the car is at operating temperature before resetting the ecu (wait for fans to go on twice). then take out "back-up" 7.5 amp fuse for 5 minutes, i do it for 7 just in case. then replace it, and make sure all accesories are off (a/c, heater, lights, etc. dont even roll the windows) and crank the engine on. without touching the gas pedal let it idle for another 5 minutes (or 7). turn the engine off and back on. done.

youll have to reprogram your radio stations and clock