P0302 DTC issue on a 350 Vortec V8 K1500
131 views · Published 25 October 2017 · 0:55 · Indexed 19 October 2026
Channel: Piero Gasoline · 2017 · Autos & Vehicles
HELP ! I have an issue on my 99 K1500. When the engine is cold, no problem, the truck runs like a champ ! But when hot, sometimes it runs like a crap, and P0302 code appears. I don't know what it should be. When I run on propane, the problem almost disapears. What I've already done : - New AC Delco Spider injectors - New Throttle Position sensor - New Camshaft sensor - New 0² sensors - New coolant Temperature sensor - New spark plugs ( iridium ) - New spark plugs wires - New distributor. Head cylinder gasket and valve seats have been replaced less than 5000 miles ago. The EGR valve works good. I think I don't mention everything I've done on it. On the second part of the video you can see live data ( Torque app.). Look at the oxygen sensors data. When the truck runs good of course the 2 banks are similar, but when the issue appears the second bank ( F/T 2x1 ) is very higher than the other one !
