1989 Celica GT Exhaust Smoke

[lunacolom]

I have a 1989 Celica that has been smoking for awhile now. I have checked everything I can think of and had numerous mechanics look at it. I was wondering if anyone had any ideas on what it might be. Car was running fine for about a week then started smoking one morning when I went to go drive it. Its black smoke. Car idles a bit rough as well.

[Bitter]

cold start injector?

[PittsburghCeli]

Check a manual for smoking exhaust symptoms.

Rough idle

(Black smoke from exhaust)

1. Restricted air filter
2. Faulty EFI systems:

•

Faulty pressure regulator

•

Clogged fuel return line

•

Defective water temp. sensor

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Defective air temp. sensor

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Faulty ECU

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Faulty injectors

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Faulty cold start injector (3S–GTE)

•

Faulty throttle position sensor

•

Vacuum sensor (4A–FE and 5S–FE)

• Air flow meter (3S–GTE)