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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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09-11-2020, 12:26 AM | #15 | |
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09-11-2020, 12:32 AM | #16 | |
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09-11-2020, 10:36 AM | #17 |
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Since the engine cranks, starts, sputters, and dies quickly, it could be alternator as well.
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09-11-2020, 10:44 AM | #18 |
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09-11-2020, 10:49 AM | #19 |
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The sensor looks like it was installed with a mulching lawn mower rather than a torque wrench.
Is that their default shop tool?
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09-11-2020, 10:52 AM | #20 |
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I am not sure if the high pressure fuel pump would work with just battery. Otherwise, I would agree that another small engine would run with just battery for a short time. Alternator fail is not something we see frequently with twins but the problem sounds like that. It might also be the fuel pump itself.
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09-11-2020, 11:19 AM | #21 | |
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09-11-2020, 05:50 PM | #22 | ||
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I just looked at some Skunk2 EL pics (Good one here: https://www.ft86club.com/forums/show...02&postcount=4) and what your image shows looks like someone drilled a small hole into your OEM header, grabbed a rotary tool, and started cutting away what they could when it didn't unscrew (If they even tried, no marks on the wrench flats is another odd visual). As @bcj said: Quote:
Is the sputter actually a sputter, as in the engine is sparking properly and turning over but failing to reach idle? Personally I would be back looking at the basics. Fuel, spark, air. For fuel you're already looking at the pump. I would test that the pump primes and holds the appropriate fuel pressure, and doesn't drop pressure when the starter engages. For spark, the cheap shade tree method is to pull each plug and try to see the spark as someone turns it over. I actually wanted to bring this up: Have you ever had new spark plugs? They're a 60,000 mile replacement cycle and fresh ones have solved weird issues with starting/idling for me at various times. For air, it's air. I'm not gonna bother, if your throttle body or valves aren't opening up properly we've got a whole lot more diagnosis to do. |
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09-12-2020, 12:31 AM | #23 |
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Probably installed too many.
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09-12-2020, 08:59 AM | #24 |
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Hey everyone, sorry for being MIA. I wish I knew how to upload videos here, I sent a video to a NYC BRZ group im in and everyone there says its either the alternator or battery. So yes while the shop did a crappy job installing my 02 sensor, my car not starting has nothing to do with the header install which I am happy about. Seems to be coincidence that the battery or alternator died after bringing it to this shop. I wish I could upload the video here of it not starting to get an opinion from you guys.
I am going to take the battery out and bring it to my local pep boys to be tested, then I'll get the alternator tested as well. Thank you all for your help and troubleshooting. I know its not easy when you cant see the car. Will keep you guys updated. |
09-12-2020, 12:43 PM | #25 | |
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09-13-2020, 01:52 PM | #26 |
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Ok yesterday I took the alternator and battery out, had two different parts stores test them both and they passed. Today I put them both back in, started the car. The car struggles to start but it did start. It sounds super rough and has a lot of knocking noise on idle. I have no clue what’s going on but it doesn’t sound good. Can someone tell me how to upload videos here so I can show you all?
Ok, realized if I upload the video to YouTube I can just post the link here, I'm such a newb. Here is the video, this is after I put the alternator and battery back in the car. I am literally praying that my engine isn't done. I have no idea what the issue is. Last edited by Slade; 09-13-2020 at 03:27 PM. |
09-13-2020, 03:30 PM | #27 |
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Do you have a datalog?
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The Following User Says Thank You to CSG Mike For This Useful Post: | anticubus (09-13-2020) |
09-13-2020, 04:58 PM | #28 | |
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As such I'd be searching for an issue with the header install, say from a bad gasket or a badly installed O2 sensor. That would also explain the rough idle as it tries to compensate for O2 readings that don't represent what's actually happening. Get CSG a data log though, I want his professional opinion! |
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The Following User Says Thank You to anticubus For This Useful Post: | Slade (09-13-2020) |
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