Quote:
Originally Posted by Milky
i had those codes as is and then some. it will idle just fine.
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Just trying to help.......why so hostile?
You might of had those codes, but that was on a 98 ECU with 98 EVAP system not on a 00+ ECU with 98 EVAP system. The 98-99 Corolla has what Toyota calls an 'Early' type EVAP (Non-Intrusive)system. The 2000+ Corolla, 2000+ Celica, 2000+ Camry etc. came with the 'Late type (Intrusive) EVAP system. Between the early and late system, they added a CCV, used a bypass VSV instead of the 3 way VSV on the canister and put the vapor pressure sensor on the fuel pump assembly to check pressure in the tank instead of the canister.
When you do the wiring to the new ECU, you will find that you should wire the CCV to the ECU which is part of the Late EVAP system. The car will run without this connection, but when it tries to turn on/off this and the bypass VSV for the tank , the vaccum goes crazy (sometimes BUT NOT all the time) affecting idle.
But really, the fix is cheap and easy. Just grab the parts that I mentioned from a 00 - 02 Corolla and bolt on. You won't spend more than $100 from a pull it yourself yard. Just the CCV alone will take care of P0441. Good luck on your swap