@Spectra; sir i know warrenty void after installation of CNG but petrol was not affordable any more 
. Alhumdulilah 8.5K on odo meter and now i can take risk. 
baki Allah khar keray ga
@bilal49er; lolz on idian ocean.
sir a light left to RPM meters needle and below high bean head light indicator is Emission Control Light.
There is closed loop system is Swift:
sensor in exhaust provides feedback to ECU on output gases and on the feedback ECU decides the quantity of Petrol & Air mixture.
but now when i use CNG Emulator send' false information to ECU and check engine light wont come but on other end sensor at exahst is not getting what is needed so the light glows permanently.
Now i rest ECU by disconnecting batery terminals and light goes off; i started using car on petrol to check if there is any malfuctioning at sensor or not and sensor remained in OFF state after car gets started. used for almost 20K till now on petrol to reconfirm if sensor is working f9.
2nd step i will switch to CNG and check the response of the exhaust sensor, i suppose it will glow again after using car on CNG
Now question is how to get rid of it as i don't see any impact on CNG but it's malfunctioning will effect petrol millage in future; but your feedback will help.
@kummail;
"ocean bht kuch hai share karye ko,bht sy logo ko nahi pta k lc1 stap,tap,etc flah flah hai kia,best kia hai,
pics lazmi,kit,cylinder,trunck each and every thing"
sir you are absolutely right i will try to take pics and share here but it would be on coming weekend
mean while i will try to answer questions
Ocean
