Hey, I just had an H22A swapped into my '93 lude (had an H23A1 in before), and my engine light comes on periodically. I jumpered the ECU, and got #12 code. Apparently it's the EGR Lift Sensor. I am wondering if there is any way I can attempt to fix this myself, or will I have to take it back to the shop that did the swap? I have no idea where the EGR is located and what to do when I find it. I would appreciate any help/suggestions you all have. Thanks!