Codes P0300 and P0301, Injector problems?

Tiny
KEN L
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Yep, the throttle body does look like it need service. The throttle body may only open that far when the engine is not running.
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Wednesday, November 13th, 2024 AT 8:22 AM
Tiny
OCTANE1Z
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I had to order a throttle body gasket so the cleaning will have to wait until tomorrow.
Okay, I have many questions as to what I should be looking for specifically when looking at after a scan? There is a lot of information I'm not exactly familiar with. I have 7 DTC total.
PO300. Stored
PO301 misfire fault stored
PO301 misfire fault pending
PO300 multiple misfires failure pending
PO113. 1- IATS / cir bank 1
2- IATS 1 circuit high
3- IATS 1 circuit - B1
PO300 cyl1 misfire fault
PO300 multiple misfires failure permanent
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Wednesday, November 13th, 2024 AT 12:28 PM
Tiny
OCTANE1Z
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Here is some data pics I have taken.
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Wednesday, November 13th, 2024 AT 2:41 PM
Tiny
OCTANE1Z
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Great news the idle has cleaned up after cleaning the tb as best I could without moving the valve. Tomorrow I'm replacing the coil with an OEM brand new one as well as an OEM Denso spark plug.
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Thursday, November 14th, 2024 AT 8:24 PM
Tiny
KEN L
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Sounds good, let me know how it goes, have a good weekend :)
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Friday, November 15th, 2024 AT 9:45 AM
Tiny
OCTANE1Z
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My STFT fluctuates between 4.7 to 12.5% at idle which means reading lean and causing the injector to stay open longer to comp more fuel correct? I'm finding a P1801 Vias Bank 2 as well as a P1800 Line pressure. Tthat be fuel line correct? I'm having to wait and do the plug and coil for the week days due to the vehicle being gone all weekend.
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Sunday, November 17th, 2024 AT 9:54 PM
Tiny
KEN L
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If the STFT is going lean it means the LTFT is rich, what is the LTFT reading?
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Monday, November 18th, 2024 AT 10:33 AM
Tiny
OCTANE1Z
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I'm getting 0.0% here's a live data I just took.
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Monday, November 18th, 2024 AT 12:41 PM
Tiny
KEN L
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Have you driven the car around after clearing the codes? If not then this will be the case. If so I would think the PCM is bad.
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Tuesday, November 19th, 2024 AT 9:18 AM
Tiny
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I can clear and record by trigger. I'll do that.
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Tuesday, November 19th, 2024 AT 4:42 PM
Tiny
OCTANE1Z
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I couldn't get the light to throw the light and stay on while recording data but did catch this once I stopped on looked at the recording.
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Tuesday, November 19th, 2024 AT 6:44 PM
Tiny
OCTANE1Z
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I was able to get it to throw again and got some information after clearing the DTC.
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Tuesday, November 19th, 2024 AT 7:43 PM
Tiny
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So a update. I have gotten sicknof chasing my tail with what some guy in a van did. I decided to start over with all knowledge of the car doesn't exist because thats one expensive rabbit hole. Read the code(s) and started there today. Took the whole thing apart to access bank 1 - cyl 1 replaced plug with a OEM denso plug and a OEM hitachi coil. I tested the new one I removed that was "new" and no spark. Then cleaned everything really good wth carb cleaner and re assembled after a meticulous inspection. I don't want to jinx it so it hasnt thrown a code when I went for a shakedown/get fuel run. Even drove in A/T and went along like a swiss watch. I appreciate everything you have helped me with and the guidance, especially with not having any tools down here at first. I will update in a tank of fuel or so.
Heres what I removed today from cylinder 1 hole. Thank you, Ken!

I can see where the coil was was arcing and burning up.
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Wednesday, November 20th, 2024 AT 3:57 PM
Tiny
KEN L
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Yep, that coil does not look good you may have found the problem :). Let me know
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Thursday, November 21st, 2024 AT 10:27 AM
Tiny
OCTANE1Z
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Well, so far so good as far as the misfire, it seems it threw a catalytic issue code twice but has stayed off since clearing. Next issue is the transmission oil drain and fill. I'm also finding the rear liftgate will not close using any buttons or fob but will open with any and I'm stumped.
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Wednesday, December 4th, 2024 AT 3:31 PM
Tiny
KEN L
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Glad you could get it fixed, thanks for letting us know. Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken
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Thursday, December 5th, 2024 AT 1:06 PM

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