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1992 Toyota Corolla rough working

Tiny
GEET
  • MEMBER
  • 1992 TOYOTA COROLLA
Engine Performance problem
1992 Toyota Corolla 4 cyl Front Wheel Drive Manual

my car idles roughly and when on long travel when I stop then put it on sometimes engine goes off. Then when I adjust idle screw then it works but seems rough.
is it the coolant sensor problem. It does 50 km per gallon. Is it consuming lot of fuel?
how many oxygen sensors are there?
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Sunday, October 18th, 2009 AT 12:58 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Adjisting the idle screw is never a good idea. You will simply mask a more serious problem like a vacuum leak.

If idle is high, then check for vacuum leak at intake manifold, injectors etc.

You should get 25-30 mpg.

There is one oxygen sensor on front exhaust pipe.
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Monday, October 19th, 2009 AT 8:56 AM

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