black smoke frm my tail pipe, high idl, high fuel consumption

2003 HONDA ACCORD
72,151 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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SATTIS
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I ran a diagnosis on my vehicle and it gave this codes P0122 (throttle positioning sensor low circuit), P0113 (intake air temperature sensor circuit high voltage), P0141. Pls can anyone give me a proper solution to dis problems as I've spent so much money in trying 2 fix it wit the mechanic butstill no result, I just changed d throttle positioning sensor with a used one (with the throttle body), dis is the 3rd one now, before that I bought a brand new 1 but still no result and dis same codes keep coming up. Pls pls pls a gud reply will be really appreciated. Thank u
Jul 24, 2014 at 8:13 AM
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WRENCHTECH
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The code only indicates a problem with the circuit, not necessarily the sensor itself. It could be a wiring problem or even a bad computer but the circuit needs to be troubleshooted and diagnosed properly.
Jul 24, 2014 at 9:02 AM
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SATTIS
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Thanks so much for your reply wrenchtech, I'm going by ur instructions right now but wat do u mean by troubleshooting the wires?
Jul 24, 2014 at 9:51 AM
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WRENCHTECH
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It means test that all the correct signals are in the correct places, not really something for a novice.
Jul 24, 2014 at 12:16 PM
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SATTIS
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Ok, so I did as u told me and saw d harness to d intake air temperature sensor is broken and d wires seem to be touching each other, I really don't knw how dat happened, so I changed d harness and d codes are gone but I've another code on now and it is d only code, it is p1157, I'm having a feeling dat d previous problem has probably triggered or damaged d sensor or wat do u feel and how can I get rid of dis also, should I just go ahead and change d sensor or check d wires as u instructed?
Jul 24, 2014 at 1:49 PM
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WRENCHTECH
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If the wiring looks OK, it's probably ab bad 0/2 sensor.
Jul 24, 2014 at 2:29 PM
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SATTIS
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Thank u so much, I really appreciate it, I'll do as u say
Jul 24, 2014 at 2:44 PM