I had a strange experience with my 2023 P MT 4x4 Thar. Thar was purchased in Feb 2023 and has done 17k+ km now. Last Monday i drove Thar to office as usual (around 25km) and it remained parked in the basement parking till the evening. Nothing was unusual. But once i started the car in the evening and drove few meters i realized
OBD check light is on and engine is not responding to my throttle inputs. Also there was
unusual vibration from the engine which was idling around 1500rpm. Car was moving so i parked it near to office exit point and took a cab home.
Next day i started the vehicle again and same issue persisted,
check OBD light was ON, and after starting up,
it goes in to a kind of 'limp' mode without responding to throttle inputs and idling with unusual vibrations at around 1500rpm. I called the service center and they advised not to drive the car. I decided to call the RSA to tow the car to service center . Issue was registered and they assured pickup in around 60mins, but later received a call stating the tow truck will be delayed and expect call in 90mins. Anyway I was in the office and not worried about when it will be picked up. After around 3hrs the tow truck arrived and picked up the car. This was a flatbed truck and i was struggling to drive the car up the ramp due to lack of power. After couple of attempts was able to secure the car on the flat bed and went to the service center.
We reached the service center which was around 5km from my office, and i myself drove the car out of the flat bed. But this time i could sense something was different. There was no vibration from the engine!! I parked the car and called the SA to show the issue, and confirming my doubt, there was no engine idling or vibration and throttle inputs were responded as usual. But there was the OBD light still ON. He switched off the engine asked me to get the job card filled so that he can inspect the car. Once the job card was created we went to check the car again and, guess what, the check OBD light is gone!!. Now i had to convince them what i experienced and they agreed to check the vehicle next day as it was already late evening. He also speculated this might be a rat bite issue.
Next day i got call from service center claiming they did a 8km test drive and could not reproduce the issue and could not find any visible issues. But there was some error history in the OBD reader showing injector short circuit. He said they have cleaned the injectors and cleared the error and this was probably a dust issue. Bill was generated with Rs. 0 amount and asked me to take the vehicle back on observation, to return if the same issues comes back again.
The errors in POWERTRAIN category in the image below were the once that caused issue
(item 10 and 11). It says Injector Short to Ground, with codes P0267 and P0264
Now i am confused about this behavior, if it was just the check OBD Light ON and no other issues it might have been a bit more comforting but knowing that the car went to limp mode and there was no issue recognized by service center other than dust on injector is keeping me up at night. Thar is meant to be a hard core off-roader and how can dust (which is plenty where i stay in Bangalore) put the car in to limp mode.
here are some of my doubts why this happened
1. I had a car was on Saturday (2 days before the issue) and the engine bay was washed with pressure water, but i was around and told him to do it from a distance to make sure no direct pressure on the electricals (also Thar has engine cover so water wont go directly on engine). But i drove around 60km right after the wash and there was no issue
2. I had a dusty trail ride on Sunday, nothing unusual or hardcore, i have done off-roading in mud and muck and dust much more than this.
Also there is no alteration done to the car which can cause electrical issues. Nothing else comes to my mind that could have caused this and how it was rectified automatically.
Any thoughts on this strange experience from fellow tbhpians ? Anyone else faced similar issue with their petrol Thar?