Jerking when accelerating from stand still / fuel consumption high?

KIM STARRETT

MEMBER
2003 TOYOTA TAZZ
440,000 MILES

I have just finished a engine overhaul. A week ago-my Tazz 2E 1300 suddenly started jerking when pulling away. Once at speed she isn’t jerking as bad the Oil light on the dash is also blinking intermittently and fuel consumption is high. I am getting about 150km on 19 liters.
I read it could be
1. CO settings - what should these be
2. Blockage in the engine- how do I check/ remedy this.
3. The choke could be always open - how do we test this
4. Why are the correct carb / co settings.

Any other points to check.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,627 POSTS

The jerking can be an engine misfire, I would run the codes to see which ones are stored, I can tell you a cracked spark plug or bad ignition coils is common for an engine misfire. These guides can help please go over them.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

RECOMMENDED SPARK PLUGS:
. .................... SK16R11 (DENSO made)
. .................... IFR5A11 (NGK made)

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