2000 Infiniti Q45 infiniti q45

2000 INFINITI Q45
98,000 MILES
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AKITANPAKOYIOYO
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car run rough and check engine light is on i got the code for knock sensor 1 &2 and map/baro switch solenoid then i erased the code with scanner but only one code remaninig which is map/baro switch solenoid p1105 pending.As soon as start the car the check engine light will come up everytime i erased it come right back up.Sometimes when i got my foot on the gas pedal it would'nt response like hesitation someone told me that is no more than vacuum problem.Please i just need you guys opinion what i can do to solve this problem thanks in advance
Oct 21, 2013 at 9:35 AM
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HMAC300
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until you fix the code the check engine light willstay on
Oct 21, 2013 at 12:27 PM
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AKITANPAKOYIOYO
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i know that check engine light will stay on all i am asking is that how the problem is going to be fixed ?
Oct 21, 2013 at 12:35 PM
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HMAC300
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you have to check that circuit out to see why, or it's a bad sensor
Oct 21, 2013 at 12:37 PM
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AKITANPAKOYIOYO
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Thanks anyways but i think need more info to diagnosis the problem
Oct 21, 2013 at 1:24 PM
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HMAC300
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if youi don't give the code then we can't helpyou
Oct 21, 2013 at 3:01 PM
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AKITANPAKOYIOYO
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it was code p1105 map/baro solenoid valve switch and they said this is under intake manifold so is hard to get to thanks in advance again.
Oct 21, 2013 at 3:27 PM
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HMAC300
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check black wire at sensor connector for battery voltage if ok turn ignition off disconnect ecm harness connector and backprobe number 41 (wht wire) see pic for further instructions.
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Oct 21, 2013 at 3:47 PM