Eclipse GST 98 - Normal sensors

It can be that problem. There he says it is the sensor circuit.

You should probate wiring.
1- 4.9 V of Ref
2- Signal
3- MASS

Then you slowly vary the position of the sensor only with given contact, you can check it only with a tester, and should vary until you reach more or less 4.8 with the thorough accelerator.

Good luck friend and notify anything