1996 Infiniti Q45 bucking and stalling

1996 INFINITI Q45
14,300 MILES • V8 • 2WD • AUTOMATIC
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DEREK JARVIS
  • MEMBER
  • 2 POSTS
I have a 1996 Q 45 and am having a problem with bucking and then stalling while driving.
The car run perfectly for about a half hour and then it will stall at red lights or worse when you are moving.
I'm thinking a MAF sensor but why does it run ok until it heats up?
Any suggestions?
May 17, 2009 at 6:39 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Hi
More inclined to suspect crankshaft and/or camshaft sensors. Check engine light on? Tune up recent, filters etc.?
Let me know
Thanks for donate
May 18, 2009 at 4:57 AM
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DEREK JARVIS
  • MEMBER
  • 2 POSTS
The check engine light does come on. I have a new air filter in the car. Haven't had a tune up in a while.
How expensive are these sensors you mentioned and how do you check for them being bad?
Cheers Derek
May 19, 2009 at 2:49 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Need to have codes read from computer that will give clue as to what is happening. Can you do that and post will advise.
May 19, 2009 at 3:00 AM
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UPENZI
  • MEMBER
  • 1 POST
I had this EXACT same problem with my 94 Q45. I took it to a mechanic who replaced the MAF Sensor and the problem has been gone ever sense. You can get one online for about $100. Or you can have a mechanic order it since they get a discount and it'll cost about $70.

I got mine done for free since the dealer I got my car from had a 30 day warranty.
Aug 16, 2009 at 5:10 AM
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