melvinmelvin
Member
My 1UZ is in a boat, hence I don't know what car it comes from.
Its a front sump pre VVT 1UZ.
The crest on the top is Toyota, not Lexus.
My best guess is Celsior (same as LS400?)
Hauled the engine and did some work on it, now it will not start.
Changed the oil pump.
Changed the timing belt.
Changed the starter, (ie injector cables unplugged and piping removed)
And some other bits and pieces.
Trying to start some or all cylinders fire, can't rev it up, it runs
for about 3 seconds then stops.
Trying to start again immediately after it shuts down does not lead to
cylinders firing.
Waiting 3 to 4 seconds before restarting, results in the same,
some or all cylinders fire, cannot rev it, after 3 seconds it shuts down.
Whats wrong?
I have 2 ECUs, the behavior is the same with both ECUs.
I'm fairly sure it gets fuel.
The return/surplus/overflow pipe back to the fuel tank has a decent flow.
Haven't checked all spark plugs but 3, they smell heavily of fuel.
Maybe I have a problem related to igniters and missing sparks.
Re igniters I have a specific question.
One igniter has 4 wires connected.
The other one has 5 wires.
Re the 5 wire one:
from left to right the wires have colors as follows
1 - yellow and green
2 - red and black
3 - red and black
4 - yellow and black
5 - white and black
My tacho is connected to wire#2 (works fine with gauge set to 4 cylinders)
My question is: what is wire#4 used for?
My mechanic changed the timing belt while I was in Bangkok picking up
the new starter.
Could an error/mistake with the timing belt result in the above symptoms?
Ideas would be greatly appreciated.
Its a front sump pre VVT 1UZ.
The crest on the top is Toyota, not Lexus.
My best guess is Celsior (same as LS400?)
Hauled the engine and did some work on it, now it will not start.
Changed the oil pump.
Changed the timing belt.
Changed the starter, (ie injector cables unplugged and piping removed)
And some other bits and pieces.
Trying to start some or all cylinders fire, can't rev it up, it runs
for about 3 seconds then stops.
Trying to start again immediately after it shuts down does not lead to
cylinders firing.
Waiting 3 to 4 seconds before restarting, results in the same,
some or all cylinders fire, cannot rev it, after 3 seconds it shuts down.
Whats wrong?
I have 2 ECUs, the behavior is the same with both ECUs.
I'm fairly sure it gets fuel.
The return/surplus/overflow pipe back to the fuel tank has a decent flow.
Haven't checked all spark plugs but 3, they smell heavily of fuel.
Maybe I have a problem related to igniters and missing sparks.
Re igniters I have a specific question.
One igniter has 4 wires connected.
The other one has 5 wires.
Re the 5 wire one:
from left to right the wires have colors as follows
1 - yellow and green
2 - red and black
3 - red and black
4 - yellow and black
5 - white and black
My tacho is connected to wire#2 (works fine with gauge set to 4 cylinders)
My question is: what is wire#4 used for?
My mechanic changed the timing belt while I was in Bangkok picking up
the new starter.
Could an error/mistake with the timing belt result in the above symptoms?
Ideas would be greatly appreciated.