Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
Hi,Are you actually getting misfire faults or is it just running rougher than normal?If I understand right, the problem originally started when you changed the battery? If that is correct, when you changed the plugs/leads did it affect the situation in any way (for better or worse) or was there no change?
Thanks.With regard to the plugs and leads... did you use either NGK or Denso direct replacement plugs? These engine management systems are extremely particular about the plugs and run absolutely terribly with gimmick plugs as well as many generic brands (Bosch for example barely run these cars).With regard to the fuel filter... can you put the old one back in and see if there is any change in case there was something wrong with the replacement?
Thanks.How about the plugs, were they NGK or Denso direct replacements?
Good.If the condition formed specifically after the tune up work was done (not after the battery but before the tune up), have you checked for intake leaks with propane or brake cleaner?