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03 Nissan Frontier 3.3L P0505,P0122 Idle air control malfunction and TPS issues
Hi my name is Pablo and I'm new to the board. I'm a mobile mechanic out of VA and have a customers 03 Nissan Frontier that has been kicking my rear for a bit now. The truck was displaying 5 fault codes and popping fuse #12 which is for the park neutral switch and A/T circuit. I did some visual inspections and found a spliced wire in the circuit that was damaged and after repairing it I cleared the codes and tested the vehicle and that solved the issue however 2 of the codes returned (P0505 and P0122) so I tested the TPS by checking the 5v ref, signal wire and ground to ecu and all were working fine. I tested the TPS even though its a new one that customer had changed out and it checked out. I tried to follow one of the case study videos for testing the Idle air control valve but the connectors were for the IAC were different from the video and it through me off. I also did a visual inspection and found that the EGR control switch was broken and three hoses that connect to it are broken or missing. Im not sure where to go from here and how to test the IAC.
So my questions are:
Since the new TPS is not from Nissan/Hitachi, can that possibly by the problem?
How would I test the IAC if its a 2 pin connector rather than the 6 pin show in Paul's video on the nissan stepper motor IAC?
Would a broken EGR control switch contribute or be the cause of the codes?
Thank you for your help in advance. Hopefully someone has been in my position before and can help.
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