hye hopping you will be fine , first of all i must thank you for doing sucha nice job.
now comming to the point i have nissan sunny 89 model (like 86, 87 ling shape), with 1300cc engine and 5 forward transmission installed in it. the problem is its consumption of cng, it has 55 cylender and gave 130-140 km per cyleneder without AC and 100km approx with AC on long drive. there is no missing spark lugs are new and fine silencer is as red as in petrol car i dont know why the consumption is so high. please guide me to get rid of this problem. thans in anticipation.