1997-Z71
OBS Enthusiast
As the title states it is a 1997 k1500 with the vortec 350. I did a full tune up a couple years ago and only driven around 1000 miles since, trans went out and needed rebuilt. I also replaced all intake manifold gaskets and upgraded the injection from poppets to the mpfi that I believe was ac delco brand. So 2 years and at least 1000 miles later the trans is rebuilt and installed and I started driving her again. All was fine the first few days then the cel started flashing. This only occurs after the truck reaches operating temp and is shut off and restarted after a short time. If I let the truck sit and clear the code it drives like a dream until I shut her off when warm and restart shortly after. I am about to subscribe to Alldata to gain access to the diagnostics procedure for this code and wanted to see if anyone else has had this happen? I will swap plug wires later today and check the cylinder 7 plug, but I am not expecting to find anything since they are practically brand new. Any info will be appreciated, oh and my driving style is pretty laid back, no fast acceleration or sudden stops, (new insurance company monitoring driving habits). Thanks in advance