Codes 41 and 29?
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Codes 41 and 29?
92 F150 4x4 5.0, 5 speed manual 3:55 gear
Does anyone know what code 41 no HEGO sensor detected means? Also throwing code 29. It only does this when the outside temperature drops below 30 degrees. Otherwise, it runs fine except that my PCV valve is always rattling.
Thanks,
-Al
Does anyone know what code 41 no HEGO sensor detected means? Also throwing code 29. It only does this when the outside temperature drops below 30 degrees. Otherwise, it runs fine except that my PCV valve is always rattling.
Thanks,
-Al
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
You want to be very careful you correctly read and understand code definitions, if you just give it a quick glance it's likely you will come to the wrong conclusion and waste your time chasing something that isn't really a problem.
41 - No HEGO switching detected always lean (right side).
That means the computer thinks the engine is running lean because the HEGO isn't switching. Is the fuel milage bad? If so the motor is actually running rich and the O2 sensor is probably bad.
29 - Insufficient input from vehicle speed sensor.
Is your speedo working correctly? If it isn't check the sensor and wiring to the rear diff.
41 - No HEGO switching detected always lean (right side).
That means the computer thinks the engine is running lean because the HEGO isn't switching. Is the fuel milage bad? If so the motor is actually running rich and the O2 sensor is probably bad.
29 - Insufficient input from vehicle speed sensor.
Is your speedo working correctly? If it isn't check the sensor and wiring to the rear diff.
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boggerted
1987 - 1996 F150 & Larger F-Series Trucks
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Feb 11, 2010 01:44 PM
