I have santro gls, model 2009, about 20000 kms driven. I m facing missing problem on patrol only. I am driven in cng not a problem but when sometimes I have to run the vehicle on patrol, i have to face jerks.
Have replaced new air filer
No leakage in air flow
Changed plug wires and plugs
Even after tuning and tappet adjustment
No significant improvement.
Also have tuned from Hyundai dealer and have a complete scan but no problem in any sensor observed.
I need to know what actually is the problem that it begins missing on patrol every time I have to run it on patrol.
Will appreciate your comments / suggestion....