- Joined
- October 16, 2000
- Messages
- 386
- Reaction score
- 56
- City, State
- Sparks, NV
- Year, Model & Trim Level
- A Troop Of Gen 3s
My 2004 was throwing a code (don't recall exactly which one) about insufficient EGR flow. I replaced the entire module (EGR, DPFE and vacuum regulator in one) and cleared the codes. I also cleaned the throttle body. Now I'm getting a P0405 code (low voltage on circuit A or something like that). Aside from the low probability of a bad-out-of-the-box EGR module, what else should I look at/for? There is no apparent damage to either the vacuum lines or the wiring harness.