OEM 3UZ ECU TUNE/FLASH

PARTS FOR SALE: Limited availability on 1UZFE EGR Delete Kits, Torque Converters and Supercharger Fish Brackets. No turbo kits. Email for info: [email protected]

Roki187

New Member
Messages
1
Location
Streamwood
A newbie here. Lots of great reading material.
Next season I’m hoping to do headers, careless y pipe, intake and ported Intake manifold with a tune from George
70k miles btw on a 04 UL
I also have a 2jz powered car
 

George_R

Well-Known Member
Staff member
Messages
1,043
Location
Russia, Moscow
For anyone trying to relearn the immobilizer, here is the method I used for my sc430.



It’s best if you buy the immobilizer delete, it will just be plug and play. Less headaches. But if you don’t purchase the immobilizer delete, you’ll need to:
1) disconnect the negative cable off battery
2) remove the oem ecu, plug in the new modified ecu.
3) connect the negative back on the battery
4) insert key in ignition, and key on (engine off)
5) on the obd2 port under the driver side dash, jump terminal pin 13 (TC) and pin 4 (CG) for 30 minutes (put a timer on).
6) the cluster gauge will start flashing during the 30 minutes.
7) after the 30 min is up, key off and remove key from ingntion. Then remove the jumper wire from pin 13 and pin 4.
8) insert key back in ignition and start engine right away.
it's been posted whole lot of times and unfortunatelly it never helps. People will still tend to read it wrong or never find this useful information. It's also worth mentioning that this method will not work for old Lexus GS430 (160 chassis code)
 

romeo

New Member
Messages
10
ecu came in today installed it and followed the procedure car started but then theres a check engine light on i hook up the scanner and its p1765 Linear Shift Solenoid Circuit Fault going to take it off now and put the stock one on untill i can get it sorted out first before i use it
 

romeo

New Member
Messages
10
update: i reinstalled my old ecu and cel light is gone so ill have to get with Quantum-Auto to see if we can get it going right
 

romeo

New Member
Messages
10
on the ecu numbers are 89661-50551......275000-2550 12v....2-50030
and there is some numbers hand written as well 3501100-8966550011
 

romeo

New Member
Messages
10
sounds like replacement is due, tell us what happens next
waiting on there email so i can send back the ecu to get fixed or replaced lol there only an hr away from my house i could take a drive there to drop it off maybe it be faster but im just waiting on response to see what the plan is
 
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