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  1. Pradeep
  2. CNG Kit, LPG Kit
  3. Friday, January 10 2020
Hi there

I am also facing the CNG light blinking issue. But it is happening in winter only. CNG switch keeps flip flopping between CNG and petrol mode for about 3 - 6 km depending on cold wheather, there after once engine is hot, it runs perfectly.

I have been using my CNG car since last 7 year but this issue is occurring from last two years.

anyone can suggest solution to this problem? would be great help.
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Hello,

The given issue is when the Engine has not reached optimal temperature or rather say Engine is Cold. In such a case, the engine will try to warm up and then changeover to CNG

I suggest to get
> Coolant Level Checked
> Coolant Thermostat Valve could be faulty
> Also is there any Start Problem, when were the Spark Plug last replaced

Not a big issue, can be easily inspected and repaired by mechanic for Coolant Thermostat Value and spark Plug


  1. more than a month ago
  2. CNG Kit, LPG Kit
  3. # 1
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