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Topic: CODE 34. New egr and DPFE sensor (Read 1399 times) previous topic - next topic

CODE 34. New egr and DPFE sensor

Pulled a code 34. Replaced the EGR valve and the Position sensor. Says High output, valve closed. Vacuum leak maybe? Please advise

CODE 34. New egr and DPFE sensor

Reply #1 –
Check the vacuum lines going to the dpfe sensor. The slightest crack in the lines will throw a code. What vehicle is this?

CODE 34. New egr and DPFE sensor

Reply #2 –
its a 1986 Thunderbird with a 5.0. Checked the lines, with no cracks ( so far)
 

CODE 34. New egr and DPFE sensor

Reply #3 –
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.