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Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: Eliminator on August 18, 2010, 02:51:01 PM

Title: CODE 34. New egr and DPFE sensor
Post by: Eliminator on August 18, 2010, 02:51:01 PM
Pulled a code 34. Replaced the EGR valve and the Position sensor. Says High output, valve closed. Vacuum leak maybe? Please advise
Title: CODE 34. New egr and DPFE sensor
Post by: kendoo130 on August 18, 2010, 06:18:26 PM
Check the vacuum lines going to the dpfe sensor. The slightest crack in the lines will throw a code. What vehicle is this?
Title: CODE 34. New egr and DPFE sensor
Post by: Eliminator on August 18, 2010, 07:30:35 PM
its a 1986 Thunderbird with a 5.0. Checked the lines, with no cracks ( so far)
Title: CODE 34. New egr and DPFE sensor
Post by: kendoo130 on August 18, 2010, 10:07:29 PM
Most of the time when I get this code its usually the dpfe sensor and not the egr. I just changed this on my explorer and a vacuum line had a slit in it. I have never run into this problem on an OBD I vehicle. Just make sure you clear the codes after all the parts are changed or repaired(you already know this) Sorry I couldn't be more helpful-maybe someone else will chime in.
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