Yes I have searched..
Been battling a recurring P0401 on my 97 LX since I go it years ago. Here are the steps I've taken thus far.
1.) Inspect VSV, good
2.) Cleared out vacuum hard lines to manifold (I "think" this is ok? what is a better way to really clean these out?). This was not easy, used some safety wire and a steel brush from the inside
3.) Replaced the EGR vacuum modulator
^^ step 3 fixed it. For almost 2 years, then the same code came back..
Replaced the modulator again, and that fixed it again for about another 1 year..
Now it is back again.
I think this is a clue to what is throwing the code, but it seems a new modulator fixes it for almost up to a year then it goes bad again.
Any ideas on what could be causing this? I think I need to do more cleaning on the hard vacuum lines from the manifold to the solenoid, but I can't seem to figure out a really good way to clean them out. If that is even it..
Been battling a recurring P0401 on my 97 LX since I go it years ago. Here are the steps I've taken thus far.
1.) Inspect VSV, good
2.) Cleared out vacuum hard lines to manifold (I "think" this is ok? what is a better way to really clean these out?). This was not easy, used some safety wire and a steel brush from the inside
3.) Replaced the EGR vacuum modulator
^^ step 3 fixed it. For almost 2 years, then the same code came back..
Replaced the modulator again, and that fixed it again for about another 1 year..
Now it is back again.
I think this is a clue to what is throwing the code, but it seems a new modulator fixes it for almost up to a year then it goes bad again.
Any ideas on what could be causing this? I think I need to do more cleaning on the hard vacuum lines from the manifold to the solenoid, but I can't seem to figure out a really good way to clean them out. If that is even it..