Originally Posted by gears1313
Okey so why we choose normal kit over sequential kit.
Since we were new to a petrol car, we checked out few CNG fitters around. All suggested Sequential kit and we were ready to go for that. This guy from where we got the fitting was in our locality, since we knew each other he suggested us to go for normal one because;
Sequential kit is computerised. If any thing happens only that dealer can do the setting. If by chance somewhere car stops, no one except that particular dealer can start the car. So the car has to be towed to the dealer. In this case if car is stopped any where any mechanic can atleast start the car, atleast in petrol.
Secondly he told that there need to be drilled holes in the head of engine(dont remember the exact term) for sequential setup. If in future we want to remove the kit while selling the car or any reason, that whole particular part has to be changed. Where as in the normal one that is simply plug and play type. Can be removed without leaving any evidence.
Thirdly; he was saying that some pipe is connected from the coolant to the kit for cooling and stuff. Because of that he has got several cars back with seized engines on a sequential kit..
1. False: Professionally fit kits virtually never/rarely stall for any reason whatsoever. If at all, no mechanic is required. The car will still run on petrol. In any case, it is not true that the car cannot be set right to run on petrol even by a regular car mechanic. Never ever heard of a sequential kit car stalled which had to be towed.
2. True: holes are drilled into the manifold, not the main engine. I can imagine no reason, why anyone would want to remove a perfectly working sequential kit. Such a car sells faster and also at a premium compared to its normal petrol counterpart. In any case, dont find it prudent to deprive oneself of the many benefits of sequential for this hypothetical 'if' reason.
3. Absolutely False: Water pipes carrying the coolant are connected to the cng kit in both the sequential and the conventional fitting in virtually the same way. This reason has no application to sequential even to start with.
Apparently, the least competent mechanic has got chosen, because he was an acquaintance and also the nearest, at the cost of the superior pleasure of driving and peace of mind of the car owner.