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  1. '03 Spec-V can't hold boost. Bad aftermarket coil pack?

    Forced Induction & Supporting Modifications
    2003 Nissan Sentra SE-R Spec-V Treadstone Turbo kit at 7.5 psi, stock engine, no butterflies Car has 108k miles and I have 2yrs on the turbo approx 10k miles Car has been running smoothly and like new until now. so last week, the car starts running terribly and CEL starts blinking. hook up...
  2. QR25DE Did the headgasket, car ran great for two days, now runs like shit, idk wtf happened?

    B15 Sentra (2000 - 2006)
    So i bought my wife a newer car to get rid of her terrible mustang and now its backfiring on me. I bought the car about 5 months ago and it has only ran for 3 of those months. It is an 03 sentra ser spec v. Things ive replaced so far are all gaskets on the top end (including headgasket) both...
  3. Help! P0303 code. Cyl#3 misfire, cel blinking

    Troubleshooting and Support
    Well driving to work I noticed the car starting to run hard. Stopped at a stop sign amd car died but started right up and was backfiring. Got a p0303 code l, so should I change the plugs and the number 3 ignition coil pack? Also installing my xs power header and greddy exhaist wouldnt cuase this...
  4. 00-01 Car wont start

    Troubleshooting and Support
    Hey guys, 2001 1.8 nissan sentra I am really hoping you guys can help me. I recently started to have a missfire on the car. A friend of mine told me to remove each coil on plug pack with the engine running so i can isloate it to a particular cylinder. So in the process of doing that, i removed...
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