Need Information about variants of 1ZZ Engines.

[Perfectlogger]

Hello, am new here,

1. I have a Toyota Avensis (T-250) 2003, which had the 3ZZ 1.6 engine. The engine got some knocking noise in 2016 and had to change the engine to a 1ZZ.
2. The 1ZZ worked perfectly for 6 years then got the knocking noise again and now I have to change the engine again (mechanic(s) opinions).
3. Started looking for a 1ZZ and opted to search for a JDM one. Found only one on the market = 1ZZ-T52. According to the shop, it is from a celica (t-23 imo) year 04-05, and supposedly it is from Japan.

Questions:
A. Is the 1ZZ-T52 really a JDM engine?
B. Will my ecu work perfectly with the 1ZZ-T52? I currently have a E1Z-T72, the 1zz variant which is used on Avensis in the USA and UK, apparently.
C. Anyone can tell me the difference between all of these models of 1ZZ Engine? Are they JDMs etc? Are the mounts the same?
D. Apart from 1ZZ and 3ZZ, what other engines can be swapped on Avensis T-250? 3GTS?

1Zz-J20
1Zz-L20
E1Z-T72
1ZZ-T52
 

[2009joe]

19 minutes ago, Perfectlogger said:

Hello, am new here,

1. I have a Toyota Avensis (T-250) 2003, which had the 3ZZ 1.6 engine. The engine got some knocking noise in 2016 and had to change the engine to a 1ZZ.
2. The 1ZZ worked perfectly for 6 years then got the knocking noise again and now I have to change the engine again (mechanic(s) opinions).
3. Started looking for a 1ZZ and opted to search for a JDM one. Found only one on the market = 1ZZ-T52. According to the shop, it is from a celica (t-23 imo) year 04-05, and supposedly it is from Japan.

Questions:
A. Is the 1ZZ-T52 really a JDM engine?
B. Will my ecu work perfectly with the 1ZZ-T52? I currently have a E1Z-T72, the 1zz variant which is used on Avensis in the USA and UK, apparently.
C. Anyone can tell me the difference between all of these models of 1ZZ Engine? Are they JDMs etc? Are the mounts the same?
D. Apart from 1ZZ and 3ZZ, what other engines can be swapped on Avensis T-250? 3GTS?

1Zz-J20
1Zz-L20
E1Z-T72
1ZZ-T52
 

would it not be handier just to get another one a t27 one or fresher by the time putting engine in and the year of the car and well other problems starting the car i had before buying my toyota was a 1.9tdi 2004 and well tbh was driving great but was kina old and thought that car paid for itself loads of years ago 

[Konrad C]

19 hours ago, 2009joe said:

would it not be handier just to get another one a t27 one or fresher by the time putting engine in and the year of the car and well other problems starting the car i had before buying my toyota was a 1.9tdi 2004 and well tbh was driving great but was kina old and thought that car paid for itself loads of years ago 

Joe, the engine in the T27 (2ZR-FAE) is totally different to the 1ZZ engine used in the previous Avensis models. Even the none Valvematic version of the ZR range is differnet to the ZZ range. Also the ECU won't work with a differnt engine design.
The OP needs to find a 1ZZ or 3ZZ engine from a good known source. The other solution would be to diagnose the knocking, and find out if bearing shells can be replaced, oil ways are clear and not blocked or any other issues. It is getting difficult to find an engine that ceased production over 13 years ago.
I know this may not sound helpful, but there comes a time when you need to move on.   

[flash22]

1ZZ engines

1ZZ-FE - the most common engine

1ZZ-FED - limited to a few cars

1ZZ-FBE - Brazil only, E100 ethanol engine