hi! I'm in the middle of 1uzfe from ls400 '96 to is200 swap and have a problem with proper connection of immobilizer ecu - can't find any diagrams or so :/ no problem with is200 diagram but nothing to ls400
maybe.. but I have a Immobilizer ECU connected with ECM probably because of that engine starts and die after 2-3sec.. sometimes its idling for some time but dies when throttle is pushed
can you put out photos of the immobiliser ECU. Sounds like you have a coil/spark issue. Also what is your engine ECU number? maybe a photo of that too. Cheers
if it's a USA 1uz then wire up the obd2 plug
most late motors have em
also last time I checked I think the engine ecu had 2 wires
goin to the immob ecu. one wire might have been brown colour
I vaguely remember
do u have the key reader and the key all from the matching
motor set.
if u don't then it's job to get security sorted
we have a key and immobilizer ecu, but lost somewhere amplifier with key coil :/ theres one in is200, even 5-wire connector match but signals are different (thats what I assumed after chasing routes of immobilizer ecu)
in donor car diagnostic plug inside was like obd1 car (round), second under hood is like in other cars (rectangular with black cap) - both of them use same split wires.. all in all I dont have scanning tool plugs that would match them
cars owner found someone who sells immobilizer chip - in his opinion it can cheat ecu we will find out tomorrow when it arrives
maybe LS400 '97+ security wiring will match? can someone took a picture of 5-wire white plug going into key amplifier? we messed up with it without taking notes
coil is on the way so we will try to fire it up with this ecu.. unfortunately those 5 wires are messed up it probably ends up by chasing routes in amplifier lack of immobiliser wiring diagrams is killing me.. few days of searching and nothing
immobiliser circuit is damaged now so we have to skip it another weird thing - we get 3 DTCs:
27 (O2 Sensor - not connected)
29 (O2 Sensor - not connected)