Check engine light can't trace issue Vitz 2006

[reaper1111]

Have been looking for answers for why my car is giving me check engine light! I would really appreciate any help I could get in understanding the issue.
It started happening a couple weeks back, the light used to come up randomly during driving and went off after a couple seconds/ minutes with no changes in car behavior. So I got the wiring checked and other minor things but it didn't solve my issue and light kept on coming up and going out randomly.

So one day the light came up and the race dropped and the car wasn't accelerating beyond 20-40kms. Got it checked next day turned out the one of the spark plug was burned out so the mechanic changed the spark plug and the ignition coil. And the fixed the issue for a few weeks.

The issue is now back, I got it scanned and it was giving error codes for throttle body and exhaust system. So he recommended me to get the silencer and CAT cleaned.

I haven't got that done yet, I wanted to ask if this is the cause I am getting the check light?

[nnabeel]

The check light is there for alarming the user that something has gone wrong.

if the scanner has identified codes, then definatley the problem is there. u can also get some basic info thru google by searching the fault codes identified by the scanner.

please do also check if your car battery terminals are not loose.

get the errors rectified one by one.

1st step Throttle
2nd step cat clean.

[reaper1111]

I'll probably be going for silencer/CAT works done tomorrow Inshallah as I haven't gotten it cleaned in a very long while and yes the silencer has also been making some rattling noise upon acceleration.

[nnabeel]

make sure the cat cleaner doesnt breaks the Jali.

[reaper1111]

Alright I'll tell him that

[reaper1111]

Ok so got the silencer works done and got the throttle body cleaned as well. But the engine light is again popping up randomly. I drove approx 80kms today with a break of 2-3 hours in between.

Check light came up once after about 22kms and stayed lit for around 10-15mins and on my way back it came back again the 2nd time for a brief 5-6mins

[affanhaq94]

Please have thr vehicle diag with a scan tool and post codes

[reaper1111]

Alright will update today. Today the check light came on since I started the car in morning and it stayed lit for about 20kms however the car's behavior remained normal. It has however started to vibrate a bit more harder on stopping at "D" gear since I got the silencer works done.

[reaper1111]

Apparently one of the grips of throttle body was not firmly attached as per the mechanic and after that he did a error code scan (screenshot attached) and reset them. After this I drove approx 30kms without any check light coming up again.