Originally posted by SCSVT: ...I am getting a very noticeable lag in repsonse when my RPM's are under 4000. It seems that the car doesn't want to move until the secondaries open. The car bucks a bit and when the secondaries open it is fine.
The rotten egg smell has almost gone away since the cleaning and DPFE replacement although I am unsure now if this may be a catalytic converter problem anymore.
Any suggestions?
Fuel Filter? Water in gas? (use HEET or fuel stabilizer), Dirty MAF sensor?