1998 Chevy v8 454 "service engine soon"
G'day from Aussies travelling your great country
Your help or suggestions would be appreciated, we are new to RV ing.
The service engine light comes on and stays on for 100 mile or so . We decided to put the high octane petrol and the light went out, for a few days.
We then put in cheaper gas and it came on. It seems as though it has something to do with the gas.
The motor is running well.
We changed the petrol cap , thinking it might be loose but the light stayed on.
We are driving in the heat of Texas.