Delayed acceleration, VSC off blinking, Traction and Engine check lights On SOLVED

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Delayed acceleration, VSC off blinking, Traction and Engine check lights On SOLVED

If you have issue in acceleration, VSC off blinking , traction and engine check lights one, try this your problem should be resolved.
Last month I bought Toyota IQ. I thought that the CAT must be cleaned. I visited the mechanic and checked that it was logged and then we cleaned the CAT without acid treatment but the issue was not resolved and there was no significant improvement in the acceleration.
The VSC turned off blinking once when I increased the speed of my car up to 120kmph while driving on the motorway. The engines check light and the traction control also not helpful in minimizing the issue. It switched on again after a short time.
Went to diagnostic setup and got a 3 page list of faults
studying on Net not the diagnostic report but the combination of lights pointed out that this is a oxygen related fault
Following actions taken in next few days
- Put genuine air filter to rule out air choke
- Cleaned throttle body and plugs, set plug gaps
- Cleared all error codes
I visited Summandar khan shop in pindi and he attached diagnostic unit and advised opening timing area since cam and crank timing errors were there .. demanded 2500/- for labor only and assessed that advance timing sprocket is faulty might have to be replaced
I visited Arshad In chah sultan very famous shop and he told me similar story with 8000/- labor charges only
I studied net and found that newer generation cars when turn on more than one light, then sometimes it is pointing to a specific area and may not be related to type of light .. so in my case one of the solutions i came across was to open fuel lid and put it back on .. I did it and the lights turned off .. it has been a week and no light .. no issues

Sajid Khan asked on 10 Dec 2022 17:06:22 pm

1 Answer

16 views |

Sumaiya Akbar - on 10 Dec 2022 17:09:02 pm

Basically the code related thing was due to loose wiring connections, loose wiring happen usually if the vehicle goes through an accident, o r can be forged by the workshops as well so that you keep visiting them and give them charges of computer inspections.
Secondly, if CAT is choked it is shear luck if it becomes OK after washing through acid o r not. Better to replace as per my opinion !