Aristo/GS300 help needed. (fault codes /engine/abs)

[Nero_slk]

Hi,

 

I've recently got myself a rare pearl white Toyota Aristo 1999 2jz VVT-i with only 60k on the clock (mix of mph/kmph) but only did around 300 miles before a few issues arrised ;/

The car is not running smooth when it idles on cold the revs dont seem to jump but the engine feels shaky (I was thinking the spark plugs are gone as they are hard to replace, they were horrible+2jz rocker cover problem was present.. I replaced the spark plugs with new NGK, tightened the rocker covers but the issue is still there) .

I did the pin diagnostic and I found:
Engine codes:
21  o2 main?
27 o2 secondary?

ABS:
33 (not sure? advice please?)
ECT:
43 (not sure, advice please?)

So the abs and traction light is on ;/ the engine light is off but the engine doesn't run smooth and doesnt rev up nice aswell...
I took off the right hand side O2 sensor and soaked it in petrol/cleaned - that didnt help... I then found another O2 sensor closer to the fire wall but could not remove it ;/ when the engine is running I tried unplugging both of them and the running doesn't change (which would indicate a fault with them) as when the MAF is disconnected the car dies straight away.


Any advice at all? keep looking at this fully loaded aristo and wishing to drive it but due to the issues I must keep it as my garden ornament for the time being ;/

Thank you!

[Nero_slk]

Removed the second O2 sensor, cleaned with petrol - still no luck.

 

Went to fill it up with fresh V power  tried "driving it out"  does rev to the end and gearchabges fine but once it picks up revs you can feel a sort of missfire... sadly the diagnostics are not showing any coil problems (which I think would be detected and would possibly cause a EML??)

 

hope someone can help

[ColinBarber]

Have you cleared all the fault codes and see which ones come back?

A faulty secondary O2 sensor will not cause a main error code but a faulty main sensor can cause an error reading on the secondary - therefore always work on the main (upstream) sensors first. Just cleaning a sensor may not fix the issue, it could have a permanent fault - very common if it is a 4 wire heated sensor.