2001 Hyundai Accent L 1.5 liter

Check engine light is on
Wont pass smog
Code that is coming up is P1128
How do you fix this?
we have changed fuel filter, tune up.
A Friend says to change the Throttle Position sensor
and the Fuel Rail and Injectors.
we are not experts and don’t know if he is right
Please help with this matter.
How to Fix this proble


1 thought on “2001 Hyundai Accent L 1.5 liter”

  1. P1128 Hyundai – Fuel System Lean Part Load

    Possible causes
    – Low fuel pressure-Fuel filter plugged
    – Faulty fuel pump
    – Engine mechanical condition
    – Large vacuum leak

    I would start with ruling out the vacuum leaks first as it would tend to be the cheapest and easiest thing to do first.

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