check engine light on (2000 corolla)

2000 TOYOTA COROLLA
Avatar
DLANHLEO
  • MEMBER
  • 3 POSTS
Hi

My car is 2000 corolla and It has check engine light on. I check the code and it is P1656 ( OCV circuit malfunction). Can you tell me what is that code mean? And what part should I change? Also, where is the gas fillter for this car? I see 1 filter behind the Evap cap ( green cap) on the fuel line but not sure about it. Can you help me out. Thank you.
Apr 15, 2007 at 3:25 PM
Avatar
BRUCE HUNT
  • ✓Experienced Mechanic
  • 3,754 POSTS
Start with checking the coolant level of the car. I would be that they might have put in a new water pump while they were in the area. Check the coolant level, then with the engine warm, crack open a bleeder on the cooling system to allow air out of the system. See how that works for starters. Then look around and check out the vacuum lines for any leaks.
Jan 25, 2007 at 11:09 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle