1UZ Conversion Power Issues

[George]

best if you check both driving and running...

[4th surf]

Check the fuel pressure and flow. sounds like you may have the fuel hoses back to front

[Hurricane]

lack of timing is 100% the current issue ATM.
dont have a fuel pressure gauge to use ether, but i would like to get one on there to check it any way after we sort out the timeing issue

[George]

Fixed or gave up?

[nathanshnoz]

Ill never give up. Getting some help at the moment ill update when I get it fixed

[George]

ok, so it wasn't what I supposed?

[Hurricane]

ive not been back to check for the voltage at STA pin, not sure nath has ether.
nath did get the ecu checked by Injectronics and was told it was failty and payed for it to be fixed.
im sure he said that he put the Fixed ECU in the car and Code 12 is still preasant along with a major lack of power.

dan.

[dumbass]

I just fixed a 1uz which someone else tried to wire up
500 bucks and a day later its all sorted
Personally there is no fking way the shops who repair ecus can test them 100%

So I think half the time it's a waste of money just like it happened here
The problem is still there
Sta pin I think only gives it fuel enrichment
Not sure if it retards timing when cranking

But stop chasing other shit
Until u fix code 12 don't worry bout anything else
Code 12 is something to do with timing
Your timing is at 4 degrees. Should be 12
So its not rocket science
I doubt its fuel
U need to fix code 12 before I look elsewhere I think
It must be in limp mode
Have u seen this motor run ok like maybe in a front cut
Was it a complete setup

The one I fixed yesterday got a front cut but had air flow plug cut off
Stupid shit like this have the customer many headaches and expenses
All because the importers who sold the motor to him had cut the air flow meter plug
Mind u it was also wired up a little bit wrong

[dumbass]

One other thing
Did he mention to injectronics about code 12
And what did they fix on the ecu. Just the normal bad caps?
Ecu repairs is the biggest fking scam
There is no way they could bench test for code 12
Half these fking ecu repairers don't even have diagrams for most of these ecus
I know because I always being asked for some

[Hurricane]

i think that we are all on the same page in saying that fixing code 12 is the issue for lack of timing. as its relating to cam or crank angle sensors
the issue we are having is fixing that code, following the factory diagnousis steps we ending up at replacing the ecu.
so next step was to get it tested, were told it was failty and i beleave they said it was likely to cause issues with timing and they had seen it before.
goin with that info there was no point saying know.

i beleave nath is talking to somone atm that is helping him out?

im waiting to here how he goes there before i go back and look over the wiring relating to code 12 again.

motor was bought on its own, came on a pallet, so nether of use have seen it run before being coverted into naths car.

im not sure on the full details of what was done to the ecu, nath will have to fill us all in.


dan.

[dumbass]

U really need to get a good ecu or check your ecu in a good running car

What is the ecu again. What plugs
I have 2 1uz ecus
One is early Celsior
Other is 1996 Celsior

[Lazza]

I've worked on Toyotas but I've never touched a 1uz so i do not know how to set the base timing. is it possible for the ignition base timing to be off?

[dumbass]

Ecu is in limp mode so it retards timing
Should be 12 at idle then go up as u rev it
Sounds like this one is staying at 4

[Lazza]

make sure STA pin is NOT receiving +12v when driving, feel free to send some beer if that helps )

I agree with George here. the ECU will not advance timing if it "thinks" the starter is still engaged. so any RPM above cranking speed throws a code 12.

[dumbass]

Just cut both nsw and sta wires that will tell u 100% if that's the problem
U are having intermittent problems so I'm guessing ecu
Anyway u could always wire in a diagnostic plug and see what data u get out of it

I'm waiting for plane to arrive to fly to Sydney to wire up a car
Maybe I should take a detour to melb heheeh