Originally Posted by porksoda

atleast in canada... warranty they wont cover anything unless the part is falling off or you have a cel or something that can be seen heard as a failure.

Try smelling for gas in the morning.

MAF does not fail this quickly... i have had cars for 6+ years with zero maf failures. Most of the time dealers wont take the time to diagnose issues and will patch things up... if they think to increase idle to set higher will solve the issue they will.

All vehicles have something to the effect of an auto choke so the rpms do start high and will come down automatically.

The stutter in the morning when the car is cold is basically a subtle misfire but not outside its normal working parameters. It can be many things but obviously someone who knows the car well can troubleshoot. The seal was a big item for e39 as while cool the rubber contracts and does not provide a good seal, it wouldn't happen when car is warm as rubber expanded. Could be plugs as well.

The additives is basically snake oil... anyone who knows anything about injectors and additives know its just very high octane fuel that advances/retards timings and you get the illusion of "cleaner system" the effects usually wear off after 2-3 full tanks.

Unless you use really really dirty gas... injectors wont have "carbon buildup" either. It is true that carbon can be builtup in the chambers but there is 0 you can do about it without taking the engine apart. Also whether you drive hard or granny it will only effect the driver profile and the computer will adapt. This will NOT cause stuttering or magical carbon deposits or magical maf failures.

Originally Posted by porksoda

atleast in canada... warranty they wont cover anything unless the part is falling off or you have a cel or something that can be seen heard as a failure.