ok so every now and then my engine light comes on turns out its as follows 12 RPM Signal = no NE or G signal to ECU within 2 seconds after engine has been cranked. & 42 Vehicle speed sensor signal = no SPD signal for 8 seconds when engine speed is between 2,500 & 5,000 & coolant temp. is below 80 except when racing engine. where do I start im not to clued up with this kind of stuff please help its doing my head in. thanks in advance nick