Car is VTi Prosmatec 2004. CNG installed but only drive it on Petrol.
When I turn on the windshield wipers, rpm drops to almost zero and car loses power rapidly AND engine starts jerking badly. Same thing happens but with lesser extent when I turn on the indicators. Sometimes when I turn on indicators, all the needles on the dial goes to zero then come back to their original position after a second.
Strange na help