P1635 code after header install 2002 Corvette

[oreobadr]

Log these: SAE.MAP, GM.EOPS, CALC.EOPS

So it seems that my MAP is updating as it should but the Vref voltage is wrong and hence the MAP reading is wrong. It also seems that my oil pressure voltage is the same regardless of RPM or if I am running or not. I probably have a short in my oil pressure sending unit that is affecting my MAP sensor.

[joecar]

Corvettes have EOP wired to PCM (I'll check s 2002 Y-car wiring diagram later tonite), so it should be working...

[oreobadr]

So I took of the intake manifold and both my EOP sensor and my MAP sensor have a full 5V reference voltage. This means that either one or both of the sensor is bad(at least I think). Does that make sense?

[joecar]

Follow the disgnostic chart I posted above.

~ posted by phone ~