Engine light has come on.

[Squeak78]

I've taken out throttle body and cleaned it all, put another iac valve in and bolted everything back on..my engine light has come on as it was never on before..can anyone explain?

 

[accentstencil]

Did you plug the TPS, IAC, and MAF back in?

 

[Squeak78]

Yes everything is plugged back in.

 

[accentstencil]

You are going to have to find out what the code is to narrow it down.
Here is a link on how to do it: https://forums.justcommodores.com.au/threads/checking-error-codes-vr-vs-revised.22307/