Running rich?

Tiny
MAT740
  • MEMBER
  • VOLVO 740
1989 740 2lt 7 seat estate auto. Anyone help? My car failed its mot test due to very high HC emissions in the exhaust. Have changed plugs/leads/distributer. Starter injector and main injectors are ok. All ignition system is ok but car still runs rich. Also pre-ignition noises occasionally although ignition timing is spot on. Any ideas please?
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Saturday, July 8th, 2006 AT 6:15 AM

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Tiny
JACK42
  • MEMBER
Oxygen sensor and mass airflow meter
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Tuesday, September 12th, 2006 AT 5:29 PM

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