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Recently replaced all ignition coils and an O2 sensor that was throwing a code. All codes associated with that cleared from the permanent codes section of the ECU and my
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#1 (permalink) |
Enthusiast Member
Join Date: Jun 2011
Location: Maryland
Posts: 360
Drives: 40th 370Z
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Recently replaced all ignition coils and an O2 sensor that was throwing a code. All codes associated with that cleared from the permanent codes section of the ECU and my Z was running perfect for 100 miles or so.
Then recently I went to start it and the check engine light started blinking immediately. I noticed a loss of acceleration, like it’s in limp mode. I’m at a loss because the only code being thrown now is P0300. I have replaced : Spark Plugs Ignition Coils 1 O2 sensor I do have an uprev cable for monitoring, just not sure where I should start. Not sure if this would have anything to do with the issues but the car has not been driven a lot over the years. It is a 2010 and just crossed 50k miles.
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20%Sides&Rear 55%Windshield l Rockford Fosgate Amp & P2D2 l Stillen CAI l F.I. CBE & LTH l GTR Start Button l Last edited by NickBaragona; 07-05-2024 at 01:59 PM. |
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#3 (permalink) |
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I went through this procedure but no luck.
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20%Sides&Rear 55%Windshield l Rockford Fosgate Amp & P2D2 l Stillen CAI l F.I. CBE & LTH l GTR Start Button l |
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#4 (permalink) |
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I don't know if UpRev is similar in user function to ECUTEK. If so I would reset the ecu and do a once over to ensure all parts were installed correctly and nothing like electrical connections/harnesses have worked their way loose ! Also check for damaged harnesses/wiring around the places you were working. What spark plugs did you install and where did you purchase them from ?
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#5 (permalink) | |
Enthusiast Member
Join Date: Jun 2011
Location: Maryland
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20%Sides&Rear 55%Windshield l Rockford Fosgate Amp & P2D2 l Stillen CAI l F.I. CBE & LTH l GTR Start Button l |
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#6 (permalink) | |
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follow proper storage procedures for gas tanks. If you are concerend, best way is to drain tank now. Get a bottle of REDLINE S-1 fuel treatment and add it to a fresh fill of gas. Not sure if there is a drain plug for the Z fuel tank. You 'll have to drive it for seevral miles to get new gas and cleaner to flow through system and do it's thing.
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“Action without vision is a nightmare.” Last edited by ZoomZ; 07-06-2024 at 11:12 AM. Reason: spelling |
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#7 (permalink) |
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Just an update, now I am also getting code P0175 Fuel System Rich - Bank 2.
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20%Sides&Rear 55%Windshield l Rockford Fosgate Amp & P2D2 l Stillen CAI l F.I. CBE & LTH l GTR Start Button l |
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#8 (permalink) |
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Clean your throttle body and MAF. It may be that in fixing on issue revealed another existing issue. Stillen CAI, any oiled air filter especially if they have been re/over-oiled, can cause oil to get on the MAF and throttle bodies causing the incorrect amount of air to enter leading to random misfires and rich/lean conditions.
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