All of a sudden the SES (check engine) light started coming on; it comes on under acceleration; after reaching cruising speed of about 50mph it would stay on, but if I let off the accelerator, the light goes away. When I got home, I scanned the codes. The codes are 35 and 36. The PMD is two weeks old (flight systems, pensacola), mounted inside the fender, on a giant heatsink with a silicon heat transfer pad. What can cause it to throw both those codes?