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1988 Chrysler Sundance Running rich/taking in too much gas

Tiny
CKIM2691
  • MEMBER
  • 1988 CHRYSLER SUNDANCE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 117,000 MILES
I've checked the vacuum tubing and replaced all of the ones that are connected to the fuel injector. I've done a regular tune up. I'm not losing any power and it's not giving out any black smoke. I can definitely smell how rich it's burning though. Could it be the fuel injector itself or maybe something else?
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Monday, August 24th, 2009 AT 1:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
1988 Chrysler Sundance Running rich/taking in too much gas

Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
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Monday, August 24th, 2009 AT 1:45 AM

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