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1986 4+3 with code 45, then code 44 ???

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Old Oct 16, 2007 | 11:07 AM
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Default 1986 4+3 with code 45, then code 44 ???
Hello,
I'm getting a code 44 (lean) after fixing a code 45 (rich) by replacing the O2 sensor. My Haynes manual is not too helpful. Any suggestions? Thanks.
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Old Oct 16, 2007 | 03:25 PM
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http://members.shaw.ca/corvette86/Code%2044.pdf
http://members.shaw.ca/corvette86/Code%2045.pdf
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Old Oct 16, 2007 | 07:27 PM
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The Haynes is an excellent tool... to keep the car from rolling. Order the FSM and follow the trouble shooting charts for the codes you need to fix. As expensive as that book is, it will pay for itself many times over in the unneeded parts you won't be buying.

RACE ON!!!
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Old Oct 16, 2007 | 09:08 PM
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Sounds like it could be your O2 sensor, check the connections on it.
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Old Oct 18, 2007 | 09:15 AM
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Thanks for the links and information. I am working my way through the various steps. Charcoal cannister looks O.K. Got another 45 code (rich) which seems logical - exhaust seems rich - engine smooths out a bit when it goes into open loop. It does run somewhat better now that it has a new oxygen sensor. Connections to ECM look good. Will check MAP. Any thoughts on what to look at next - i.e. common problems? Thanks.
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Old Oct 18, 2007 | 01:24 PM
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Originally Posted by Benkert
Will check MAP.
That'll be interesting!
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Old Oct 19, 2007 | 08:49 AM
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Sorry - MAF.
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Old Oct 19, 2007 | 03:58 PM
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Originally Posted by Benkert
Sorry - MAF.
Mo Betta!
Last edited by Ray Quayle; Oct 19, 2007 at 04:10 PM.
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