Hello All,
I'm new to the forum. I just purchased a 1996 OLds 88LS. It has 90k on the engine. It was pinging under the slightest load. I replaced plugs, wires, pcv, and cleaned the egr valve. The service
engine light was on. It had a 0442 amd 1870 code. I found a vacuum line that was unplugged, fixed it. I took the ground off the battery while I was working on it. Now no engine light, but it still pings.
It is not over heating.
Help, any ideas?
Thanks,
Ken G