P0403 Please Help
I have a 2004 Pacifica with 120,000 miles on it. I am getting a P0403 code, I just had the EGR valve replaced and I am still getting this code. I checked the wiring going to the EGR and nothing looks wrong. Does anyone have any ideas or suggestions? Thanks
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I also checked the wires running from the harness to the two O2 sensors. Could the notorious intake plentum leak be the cause of the P0403
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U will need a scanner to make the EGR tiurn on and off my the PCM and then measure the voltage at each connector pins and see which is missing.
Also how did u check teh wires just look or measure voltage and grounds? and short to ground? |
I did a visual. I removed some factory tape from areas on the harness that looked kind of rough and found no bare or broken wires. i also made sure all connections to other sensors were good.
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I just noticed, the area under the battery has multiple ground wires attached to the body. One of the ground wires was barely attached, I pulled it off with very little effort. It comes out of the harness that leads up to the EGR area. I hope this is my problem.
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Does this solve your problem?
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Ok, just an update. I checked the ground wire under the battery and 1 of them (the single wire) had a brittle connector that got easily removed. I changed it and haven't seen any error codes yet after a full day ride. *fingers crossed*
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Originally Posted by sivitec
(Post 110266)
Ok, just an update. I checked the ground wire under the battery and 1 of them (the single wire) had a brittle connector that got easily removed. I changed it and haven't seen any error codes yet after a full day ride. *fingers crossed*
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There's a Chrysler dealership here, but I doubt that they will be able to solve the issue. It's good that we have forum like this where people can support each other :)
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