ecu
May-25th-2004, 11:38 AM
#1
Registered User
Thread Starter
Join Date: Apr 2004
Location: west lafayette Indiana
Posts: 42
ecu
if i get a new intake. would i have to change the ecu at all to get the most out of the intake. i don't want to buy a whole new ecu. but just wondering if i would have to mess aroud with it
May-25th-2004, 01:49 PM
#3
2002 RX-7 Spirit 'R'
Join Date: Jul 2002
Location: Brampton, Ontario, Canada
Posts: 872
wiht our cars u just need to reset teh ecu thats about it, so that the ecu can re-learn a few things, liek the airflow and etc....
just do what roddimus explains....
i knwo with other cars u will have to switch out the ecu... NOT for just an intake, but like RX-7s, when u have an intake, and ure exhaust fully done (dp, mp, cb) u will have to go aftermarket ecu to fully utilize those mods AND not to blow ure engine.....generally they say dunt go mp (or it was dp) without an aftermarket ecu, may it be a full standalone, or just a companies aftermarket ecu tuned to ure mods....
but our cars no
just do what roddimus explains....
i knwo with other cars u will have to switch out the ecu... NOT for just an intake, but like RX-7s, when u have an intake, and ure exhaust fully done (dp, mp, cb) u will have to go aftermarket ecu to fully utilize those mods AND not to blow ure engine.....generally they say dunt go mp (or it was dp) without an aftermarket ecu, may it be a full standalone, or just a companies aftermarket ecu tuned to ure mods....
but our cars no
May-25th-2004, 02:09 PM
#5
Registered User
Join Date: Aug 2003
Location: Ontario, Canada
Posts: 77
So, if I were to upgrade my stock air filter to a K&N, I'd need to reset the ECU as well?
Why? If there is increased airflow, won't the airflow sensor pick it up and just tell the ECU that more fuel needs to be injected.....?
Why? If there is increased airflow, won't the airflow sensor pick it up and just tell the ECU that more fuel needs to be injected.....?
May-25th-2004, 02:15 PM
#6
The man behind the mask
Join Date: Oct 2003
Location: Birmingham, AL
Posts: 11,572
air flow sensor?? Mass air flow meter only measures the density of air, not velocity. K&N's (supposedly) allow MORE air, not denser air. Denser air is colder air...if you add an intake THEN you would want to do the ecu reset...and even then don't expect any kind of gain from it.