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woitw1
Novice
May 19, 2006, 5:38 PM
Post #1 of 2
(1901 views)
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now what ???
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87' ford escort,1.9 lt- starting cold runs like its flooding ,after a minute or two it evens out
except for a occasional miss,oil pressure fine (gauge no light) temp fine(again gauge)
i drive 32 miles to work runs fine,start it after work runs like crap for the first few minutes
then smoothes out except for occasional miss
engine codes 77 and 177 heated exhaust gas sensor -voltage signal indicates "rich"(bank#2)
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DanD
Veteran
/ Moderator
May 22, 2006, 4:07 AM
Post #2 of 2
(1881 views)
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I’m not sure what is going on with the running issues but a code 77 may have been set because of whoever read the code did not perform the procedure properly. Code 177 is the same code; used by a manufacturer specific tester.
Code 77 sets during an engine running test when the computer did not see what is called a dynamic response. The operator of the test equipment has to depress the throttle to the floor (quickly) when prompted to by the scan tool.
Have the engine running test done over again if the throttle was depressed to the floor and the code still sets you may have a TPS (throttle position sensor), TPS circuit or a computer issue.
Dan.
Canadian "EH"
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