11/29/2023 0 Comments 2002 kia spectra wiring harnessI looks to me like you still have incomplete combustion due excess fuel. With high CO and high HC I solve the HC and the CO normally takes care of itself. This confirms that the new sensors are capable of responding correctly. This will (hopefully) force the O2 sensors lean, and generate a short term fuel trim positive correction. One, I'd be interested to watch the fuel trims at idle while generating a large vacuum leak. A fuel issue would also account for the long crank time.Ĭouple things I'd want to know before going further. Around 25-30% total trim for both banks is definitely outside normal, and indicates and strong rich condition. Thanks for including the data! The negative fuel trims stand out right away. Toyota's are pretty quick to pick up heater faults, so I'm sure you're in the clear as far as the sensors themselves. I have done one trip and two trips detection logic and I don't have any DTC's and no MIL. 30.00 degrees Celsiusīabajis2010 wrote: I have installed the oxygen sensors upstream and downstream and erased the codes and MIL disappeared. 2) closed loop: using O2 sensor for fuel mixĮngine coolant temperature. Shouldn't the RPM be 740 immediately whether cold or warm.ĮCU 1. I have below the live data if you guys could make any sense out of this for me, all I want is the car to start fast, function optimally with lower fuel consumption.Īnd also during cold start the RPM is like 1800 at idling, and when it's properly warm it goes to 740RPM, wondering if that is normal. The car before the sensors fix and also after the fix doesn't start in like 2 seconds of turning the ignition key, you have to hold the key while the engine spins like 5 seconds before it starts which is quite different from my other car that starts at a blow. I have installed the oxygen sensors upstream and downstream and erased the codes and MIL disappeared. Your kind help would be so much appreciated Upstream sensors (89465-4205-44030), which should go to bank 1 and 2 Check wire harness or connector (oxygen sensor - EFI relay): I am stuck here also.Īlso I want to find out if the A/F sensors are bank specific, as there are two part numbers for the upstream sensors and also two part numbers for the downstream sensors.ĭownstream sensors (89465-4405-44060), which should go to bank 1 and 2 Check wire harness or connector (ECM-oxygen sensor): I am stuck here and need help on thisĤ. Check oxygen sensors: I have ordered for two new upstream sensors and done tests for the two downstream sensorsģ. Check ECM for voltage: I've done that step correctly and got 11.9v (FSM states 9-14v) My trouble now is I am following my car's FSM (factory service manual) on the troubleshooting. I am looking at checking all the 4 wire harnesses just to be 100% sure everything is right. So it looks like my downstream sensors are good but one of them still throws the DTC code P0161. The downstream sensors are the right part for the car and I have done resistance test reading and continuity tests for both downstream sensors and got 13.9ohms and 13.2ohms with beep sound for continuity (FSM spec for ohms is 11-16ohms). I discovered that the two A/F sensors upstream are not the right part number for the car and I have ordered the right OEM part from Toyota company here. I am from Sweden and I bought a Toyota Avensis verso 2002 gasoline vvti with DTC's P1135, P1155, P0161. Hello guys, I'm glad to be here after watching all the great videos on YouTube.
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