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Codes Checked - not in book...?[850/94] posted by Barry on
Sunday, 23 September 2001, at 11:28 a.m.
OK - check engine light came on in my 1994 855 Turbo. No problem. Pulled codes 443 and 435 for the fuel injection system.
443 - nowhere in my Haynes manual
435 - Heated O2 sensor response slow
So - anyone have a guess as to 443?
I have had 435 and 443 show up twice in the last month. Don't have a clue as to the one, but do I need to replace the heated O2 sensor?
Thanks,
Barry
97 white 854 GLT, 94 white 855 Turbo, 87 Mustang GT setup for road course play with 426ci stroker motor
Re: Codes Checked - not in book...?[850/94] posted by Rich K. Fairfax, VA on
Sunday, 23 September 2001, at 12:57 p.m.
The 443 is for Three way catalytic converter (TWC) efficiency low. Replace the HO2S and the 443 will more than likely go away. The longer you run with a bad HO2S the more chance you take at damaging the Catalytic Converter.
--Rich K.
Volvospeed.com/bay13