hey guys i have a question. my check engine light is on and i took it to auto zone and they said the reason why it's on is because my o2 sensor was bad and my gas pressure relay switch. i have a 1997 kia sephia 1.8L. i've replaced the old o2 sensor and my check engine light is still on. can anyone tell me where this gas pressure relay switch is. and is that whats it's really called? maybe a fuel regulator? idk please help me i just had a newborn and i need to get my car registered and i don't think it will pass smog check
gas pressure relay switch?`
Linear Mode
