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Hi guys. Very new to this website and diagnostics. I am based in Australia and I have been in the trade for around 30 years as a mechanic and road safety inspector, the electrical and diagnostics side were never something I had to do as I had a friend who took care of all that who no longer lives near me and I have to start doing it all myself. Bummer!
I have a kia sportage automatic petrol v6 with a P0171 code. I have tested for air leaks with a smoke machine, I had a very slight leak at the throttle butterfly which I don't think is enough to trip the code. I have no misfire or dirty MAF, fuel pressure is around 3-4 bar.
ST Fuel trims are high, 48% and 23% on B1 B2 when I try a snap throttle my fuel pressure drops slightly and the fuel trims get higher by 3-5%.
Long term are around the 0% B1 0.5% B2 . I have tried spraying around the inlet manifold with no difference to any readings either I have also sprayed every hose I can find with no changes. I have clamped off the booster hose as well with no change. I looked at the live data of the 02 sensors and they look ok but I don't have a lot of experience looking at these things. The vehicle has do 91000klm and I cleared the code a few days ago and it came back after 1090klm with the check light on again.
Any input would be greatly appreciated guys.
Last edit: 7 years 10 months ago by frankc1969. Reason: NUMBERS WRONG
I had another look today at it today and the 02 sensor flat lined on B1 S1 at WOT, and B2 S1 was doing its thing. I don't have any freeze frame as the KDS has no freeze frame data. I will try get some pictures on my phone and upload them tomorrow.
Thanks for the input.
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