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04 sentra spec v

806 Views 1 Reply 2 Participants Last post by  i68k
I have 04 sentra ser spec v and I'm looking for a place in md or around pittsburgh to get a tune. I have a full length 4 to 2 header with a full length intake with a ported throttle body. So now my car won't hardly start and when it does it runs real hard for about a min then smooths out but keeps surging from 800-1800rpm and when driving up a hill on the highway I can feel slight differences in power......I feel this all bc the ECU is messed up do to the mass air flow sensor reading much higher from the increased air and the o2 sensors and not having catalytic converters......so idk where to get the ECU tuned at?
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