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Toyota
4Runner
Engine
Symptoms
Rich
1990 Toyota 4Runner Running rich
1990 TOYOTA 4RUNNER
19,500 MILES • V8 • 4WD • MANUAL
STU WILLS
MEMBER
1 POST
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My car is running rich and I can smell gasoline at the tail pipe. How do I adjust the air / fuel mixture to get this better.
Jan 12, 2008 at 12:11 PM
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MERLIN2021
CERTIFIED EXPERT
17,250 POSTS
Does it have a high idle? If yes check the coolant temp sensor, and with 195000 miles, have you ever replaced the 02 sensor(s)?
Jan 12, 2008 at 1:25 PM