I have 1986 toyota corolla 2E engine and fuel consumption is high (only 7 km/litre). engine is firing ok and running smooth. Could u pls tell me the reason/what to do?
Why does my normal rpm always bug down when the engine start?and when I started to use the air con, the rpm was playing. It doesnt go on a certain point. it always range at 800rpm then it will down to 700. what am I might do to solve this probem?
A dirty air cleaner will cause an engine to use lots of fuel and still appear to run fine especally in cold weather. If you have not changed your air cleaner in sometime do so and note the difference.
Also a sticking EGR valve i.e stuck closed at highway speeds / passing / starts and stops can rob you of fuel economy.
If you know any half way good backyard auto mechanics they will know how to test an EGR valve with an external vacuum hose.
Thanks for using FixYa!
Kelly
Testimonial: "Thanks a lot. Already changed air filter but problem persists. Shall have to check the EGR valve by mechanics. Thanks again."
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