Ed_r

Ok had the p0410 fault and soldered in the proper diode in the em, on the right pins. Drove the system readiness procedure twice. No p0410 so thats gone yea. Now i didn't disconnect anything, just removed the ecm, soldered the diode in place, and put it back together. Now after my readiness drives, I plugged into the OBDII connector and rescanned to see if the system was ready, and found there was a pending fault p0455, for a large emissions leak. This fault was not present before. I scrolled through all 25 pages of this post, and I've seen a few people come up with the p0455 fault after doing this mod. Did anyone ever figure out why this is happening? Is it just a coincidence after the mod? Actually the check engine light didn't come on yet, I just noticed the fault when I rescanned. I since cleared the p0455 fault. I'm going to put more fuel in the car, it was on ¼ tank. So maybe that has something to do with it. Any further insight?