What is the possible cause of low and unstable idle on cold start of vvc engine

Tiny
RABUH
  • MEMBER
  • 1997 MITSUBISHI LANCER
  • 150,000 MILES
When start at morning the idling is low and unstable, if you press the pedal it has no power, and when it's hot it become stable but sometimes during stop and try to drive again the engine has low power and it takes time the engine to response even pressing the accelerator. This car is variable venturi carburetor asian car.
Thursday, May 3rd, 2012 AT 6:47 AM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I would start with checking for vacuum leaks and carby general tune settings.
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Thursday, May 3rd, 2012 AT 6:51 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Symptoms indicates the auto chooke is not operating correctly.
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Thursday, May 3rd, 2012 AT 2:01 PM

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