Join Date: Apr 2011
Location: Corona, CA
Drives: 05 Durango, 2012 Kia Soul+
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Wondering if you came to any conclusions, Bitmaster? I am having issues again similar to what you are experiencing. I took it to the dealer for a diagnostic and they said it was the first O2 sensor (which I had replaced the week before). They reprogrammed the ECU, and "repinned" some of my connectors, and had the car for 2 weeks. I got it back and the same exact thing still occurs!
I am purchasing some Stabilant 22, (Borg Warner CL-85) to try it on all my connections. It is supposed to be an electrical conector enhancer. At this point I have decided it MUST be an intermittent electrical issue. I have simply replaced everything else, and inspected what wasn't replaced many times over.
FYI, I have replaced timing belt, Plugs, Coils, Wires, Fuel injectors, intake and exhaust manifold gaskets, Catalytic converter(1st one), throttle body gasket, Both O2 sensors (twice over... and 3rd one at dealership), Valve cover gasket, IACV, MAFS, TPS, and have tested and verified fuel pressure, engine and intake temp sensors, PCV, and purge solenoid. I have 185 psi on all 4 cylinders in comp. test. Delership thought MAFS was bad...then decided O2 was bad...and then said TPS was bad, and finally worked on connections, and said they had it fixed. Well, they didn't! I will let everyone know if the "connection enhancer" works. If it does, I am going to recommend EVERY Kia owner go out and buy it, since I have read about HUNDREDS of similar issues on these cars. (and my connections and connectors LOOK perfect!).