code 45?

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aaronl
Posts: 89
Joined: Wed Aug 25, 2004 8:22 am
Car: 95' Q45A, Expedition

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Ok Im 200 miles from home and got a check engine light. The code is 45. when I search for this I get every post with the word code and Q 45 in it .

aaronl


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elwesso
Posts: 30810
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
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Injector leak... If you know your injectors are OK, most likely O2 sensors..

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aaronl
Posts: 89
Joined: Wed Aug 25, 2004 8:22 am
Car: 95' Q45A, Expedition

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Thanks Wes,

I have about 350 miles to go before I get back home this dosn't sound like something that will leave me stuck on the interstate somewhere.

Q45tech
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Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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Anything that causes the O2/ecu to sense that the adaptive learn is beyond 115% too much fuel which must be backed off to achieve 14.7AF or as they said sluggish O2, MAF voltage error..........coolant temp sensor not warming up enough [thermostat]...........somehow it is too rich compared to built in software program considers [normal conditions].

Bad plugs and a misfire would also do it.


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