DTC: EGR Valve Insufficiant Flow

schwen_108 · #1 01-10-2010, 12:54 PM

Ok, so my 95 has the check engine light on, and has for a while now, so about 8 months ago I took it into the autotech class I attended. I put it on the computer and ran the diagnostic trouble codes (DTC) and it came back with EGR valve insufficant flow..I replaced the EGR with a brand new one straight from the dealership, replaced all the sensors, cleared the code. Than about after driving 10 miles the light came back on, so I ran the codes again and it came up with the same thing. Now I'm wondering what's wrong with my ranger, if I use the defrost, or the AC when I'm driving the idle will randomly kick up around 1000 RPM above normal. Its reallt getting on my nerves because I hate feeling like I'm driving a clunker when really that's the only thing that's wrong with it (besides my armrest falling off)

Kingoverace · #2 01-23-2010, 12:54 AM

Wow, cant believe no one tackled this one yet.....
Firstly, Check the EGR line that runs from below the EGR valve, down to the exhaust, its usually clogged. Also, I dont know if there on the 95, but I replaced the DPFE sensor on my 98 3.0, and unclogged the 2 lines running from there.
2ndly, your higher rpms isnt too uncommon but I dont remember a solution. ?SORRY?
Remember the AC will come on in Defrost mode, in any temp set.

schwen_108 · #3 01-23-2010, 01:14 AM

How would I go about unclogging the line from the egr to the exhaust, that was my guess for the problem. I've just been too lazy to do it.