If you car uses injectors, you can't adjust anything. It's completely automatic. If mixture is too lean or anything like that it means one or more sensors are not working properly and must be tested and replaced.
This require special tools. Take it to a dealer. Not a DIY job.
Computer controlled
Can you replace your 2000 Camry CE 4-cylinder engine with a 1997 Camry engine?"
no sir.
dose 1997 and 1999 of Toyota Camry has any difference
No, you can't.
Can a put an engine out of a 1996 toyota camry into a 1997 toyota camry?
Where is the oil drain plug on a 1997 Toyota Camry V-6 located?
No, it is completely different belt, it is longer too.
1997 and 1998 will fit on 1999. 1996 is a different model.
No, engine from 97 will not fit 96.
1997 Toyota Camry ignition switch removal