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Old 12-24-2022, 06:40 AM   #1
ZinCix
 
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Hesitation and fault code 94

Hello again. My 2000 Yaris does that weird thing when accelerating like i'm on and off the gas. It doesn't cut off, just does that weird thing and i also have fault code 94 on the self diagnosis but can't find the code info anyhwhere. Anyone had anything similar? I recently changed the maf sensor with an oem one but nothing changed.
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Old 12-24-2022, 08:50 AM   #2
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Do you have a code reader for the OBD two port?
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Old 12-25-2022, 06:57 AM   #3
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Do you have a code reader for the OBD two port?
No unfortunately i don't.
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Old 12-25-2022, 08:27 AM   #4
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Amazon sells them I suggest you get one and learn how to use it. It’s easy!
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Old 12-25-2022, 08:36 AM   #5
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Amazon sells them I suggest you get one and learn how to use it. Itís easy!
I'll borrow one from a friend. In the meanwhile i was eondering if anyone in the forum had a similar issue to guide me on what to look for
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Old 12-25-2022, 09:23 AM   #6
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If the fault code 94 translates to P0094, then you have a fuel pressure leak.
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Old 12-25-2022, 11:25 AM   #7
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If the fault code 94 translates to P0094, then you have a fuel pressure leak.
Seems logical combined with accelerating isdue. Maybe fuel pressure drops. I'll check it tomorrow.
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Old 12-28-2022, 12:55 PM   #8
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How can i test the camshaft and vvti sensor?
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Old 01-05-2023, 11:38 AM   #9
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I bought a code reader and the error i get is something like "Catalyst System Efficiency Below Threshold bank 1".
Also i checked the live data and the tps is 11% on idle and 77% when i fully press the pedal. Any help?
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Old 01-06-2023, 04:25 AM   #10
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What what is the actual code you got? What’s the number?

What does TPS mean?

I’m thinking you’re cat converter might be bad. That would suck!
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Old 01-06-2023, 05:17 AM   #11
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Tps= Throttle Position Sensor should it go to 100% or 77.6% at wide open throttle?
I had the mid pipe removed before some months and the cat converter looked clear, i could see through the cells.
I forgot to mention i've recently changed the maf and o2 sensor before the cat. Both are denso and had the same part number as the oem. I erased the codes yesterday and left the car to cool down. After a while i checked the codes again and "system too lean bank 1" popped up but no cel. I will update with the exact code number when the cel pops up again. Can a bad throttle body gasket trigger the lean code?
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Old 01-06-2023, 07:41 AM   #12
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Yes
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Old 01-06-2023, 07:41 AM   #13
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If you blow smoke around the area of the throttlebody gasket, it would be sucked into the engine if the gasket was bad
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