Went to 3S before Ramazan but in vein. The wash and tune the car for 56K check-up but the condition remained.
I want to a good EFI electrians and got the following OBD codes:
P0110 Intake air temprator sensor malfunction
P0340 Camshaft Position (CMP) Sensor Circuit malfunction
P0500 Vehicle Speed Sensor (VSS) malfunction
He team did a 3 hour work on cleaning throttle body, injectors and plugs.
Now the car is a lot better in high gears but two problems remains:
- No power in 2nd gear on CNG (worst) and Petrol (a bit better).
- Car power seems good in the 40 min drive to office in the morning. But 1 hour 30 min drive from office to home seem worst.
From other PW threads the problems might be (in the same order):
- O2 Sensor issue
- Coil heatup issue (specially on CNG).
Thanks for your time.
NK.