Beebeeandhis3

I recently installed a cold air intake on my 06 mazda 3. Since the install I have been noticing some problems and was wondering if I can do something to fix them or just let the computer fix its self.
1. when I start the car, unless im revving the engine, the rpms are bouncing slightly and keep going low and sounds like the car is about to die. ( has died a couple times)
2. when i accelerate it seems like the car is accelerating way slower than normal
3. when I'm on the hwy and the car is in fourth and I have to slam on the gas, the car down shifts to 3rd gear or in a few instances all the way down to second.


My check engine light came on the other day and when i got the code checked they told me it was an o2 sensor.


sorry for the lengthy post. thanks in advance

eggynatey

Did you reset the ECU after changing the air-fuel ratio by installing the intake?

If not, here's how.
Take of the battery cables.
Tap the brakes a few times to drain any charge that's in the system.
wait 15 min or so
put the battery cables back on the battery
Start the car and let it idle for 10 min or so.
While it's sitting there idling, it'll relearn the new AFR. Then your car oughtta run great again.

Good luck

seriousdriver

What brand is your cold air intake? I recently bought K&N's and have yet to have it installed.