1uz Idle/Warm up issues

[Aphox]

G'day,
Another exciting development with the 1uz...
Drove it 500+km's yesterday and it was happy as a 1uz could be, also took it out for a small drive last night and was fine. Today is another story.

Started it up and would turn over but die.
Started it up and held revs at 1300ish with accelerator and it was happily smooth, I would stop accelerating and it would die.
Did that again for about 1-2minutes and it ducked under 500 and bounced back up.
Now the petrol side of things is great, as it as i can smell it, as if it was warming it up at 1400 etc... and the spark is well apparently, as i can rev it after i've warmed it up and its smooth.

So it will idle at 500, which it tries to do straight away and dies. If i rev it to 2000 and let it drop it will try and recover to 500 and die.

Coming from a ta22 2t this is all new, it seems whatever it is that controls warming up/idle is on the blink.
I can hear a click (from i think) from the right side of the engine bay when i take it above 500 revs.

Any ideas?
Cheers.

 

[Nick M]

What kind of car? Stock 1UZ computer controls? What year? What codes?

What have you checked.

 

[Aphox]

G'day,
1989 Toyoa Clesior Stock Everything
Only code its throwing is 19 for TRAC otherwise fine.

Since then its done similar things, throttle body is as new, Just changed the ECU temp sensor as old was a bit dodge it its output, just trying to fix radiator to test whole system.

Maybe the car has been abused but my old celica was more reliable lol...
Cheers

 

[sideshow]

its common for idle motor to siezeup or clog up

remove and clean check bearings inside


mine did same thing 2 days ago

im justgoin to fit a 2nd hand idle motor