So i had a engine light on and so it was for an O2 sensor, or so i thought. I went and replaced it, but now i have eight pending faults on my ECU. here they are and please share any comments on what the problem may be..
P1504
P0136
P0401
P1131
p1151
p0301
p0302
p0303
Oh and its a 2001 Windstar LX
Thanks again

 

these are all pending dtc that have set after you cleared the dtc after the 02 replacement?



when misfire dtc p0301 run and set; the 02 monitor p0136 won't even run...so I doubt these are pending codes. usually what I would recommend is to clear all dtc and see what returns.

 

Okay so i have done that and now only 0301,0302,0303,0401, and 1504 is left still. and i also found out that i have some arc coming from my spark plug wires wherever they are touching outher spark plug wires or a piece of grounded metal.

 

that explains the misfire dtc. so replace the wires, route them correctly and clear all the dtc and see what returns.

 

Okay, will do that and update. Thanks alot

 

Update, replaced the plugs and wires, now it only has code p0401 but I had already replaced the rectangular dpfe sensor on the rear of the engine. Any idea?

 

can you confirm the egr valve is opening?