My civic 94 is swapped with d15b3 CARBY (sershah) a year ago , allhamdulilah since then i never visited any mechanic (other than PSO computerized tuning and oil change ).
i use CASTROL magnatic usually for about 6 months as my use is very limited only 5-10 km 3-4 days a week only in defence (rush free drive)
cars battry is just 2 motns old, and self starter works fine .
The main problem is COLD STARTUP .
when ever i start my car early in the morning on CNG it take long 5-6 self before starting with missing for about two to three mins and than becomes normal ,my residence is next to sea view (high moisture area).
if i start it on petrol it usually starts on 1st or 2nd self , but missing is there for 1-2 mins.
my car has good acceleration both on CNG and petrol (0 to 60 7 sec +-1) but the mileage is poor only 80 km on full tank.(450 -500Rs) and 5-6 km per liter on petrol.
some times the engine does the Dieseling thing when turning it off on petrol.it usually happens when the engine is at idle temp.
about six months ago PSO Comp tuning expert asked me to change the plugs ,
since the car was working trouble free i continued the use ....
Experts Please advise me with suitable cure and care for my ride.