Hesitation and fault code 94

[ZinCix]

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.

[bronsin]

Do you have a code reader for the OBD two port?

[ZinCix]

Do you have a code reader for the OBD two port?

No unfortunately i don't.

[bronsin]

Amazon sells them I suggest you get one and learn how to use it. It’s easy!

[ZinCix]

Amazon sells them I suggest you get one and learn how to use it. It’s 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

[WeeYari]

If the fault code 94 translates to P0094, then you have a fuel pressure leak.

[ZinCix]

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.

[ZinCix]

How can i test the camshaft and vvti sensor?

[ZinCix]

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?

[bronsin]

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!

[ZinCix]

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?

[bronsin]

Yes

[bronsin]

If you blow smoke around the area of the throttlebody gasket, it would be sucked into the engine if the gasket was bad