1995 Q45 losing power while accelerating

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lildwell
Posts: 56
Joined: Wed May 21, 2008 2:49 pm
Car: 1995 Infiniti Q45a

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Hey guys. Whenever press on the gas pedal my Q seems to lose pewer. I can also hear a popping sound from underneath the hood. What could be wrong?


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black g50
Posts: 261
Joined: Wed Nov 02, 2011 1:59 pm
Car: 1994 Q45 Black/Black--235/40/18's avh3100 xplode 12" and amp 160000miles.2001 rodeo 190000miles
Location: Middletown,De

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When mine did that,it was fuel pump on its last leg.

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Towncivilian
Posts: 4868
Joined: Sun May 23, 2010 10:21 am
Car: 2001.5 Nissan Pathfinder SE 3.5L 2WD A/T
2007 Nissan Altima 2.5L CVT
2012 Nissan Sentra 2.0L CVT Special
2012 Infiniti G37 Sedan 7A/T
Location: Florida, USA
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Do you lose power at all RPMs, or just higher RPMs? If it's the latter, change the fuel filter. Though I'm not sure what explains the popping noise...

lildwell
Posts: 56
Joined: Wed May 21, 2008 2:49 pm
Car: 1995 Infiniti Q45a

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Well I found out that my cats were burned up. now it does it when my pedal is pressed half way.

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Towncivilian
Posts: 4868
Joined: Sun May 23, 2010 10:21 am
Car: 2001.5 Nissan Pathfinder SE 3.5L 2WD A/T
2007 Nissan Altima 2.5L CVT
2012 Nissan Sentra 2.0L CVT Special
2012 Infiniti G37 Sedan 7A/T
Location: Florida, USA
Contact:

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If the cats are clogged that could be the issue. Do the cats visibly glow at operating temperature? If so, they're clogged.

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black g50
Posts: 261
Joined: Wed Nov 02, 2011 1:59 pm
Car: 1994 Q45 Black/Black--235/40/18's avh3100 xplode 12" and amp 160000miles.2001 rodeo 190000miles
Location: Middletown,De

Post

Is that the only way to know if there bad? My mech. raced the hell out of my car in park,then said if my cats were bad he couldn't do that.


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