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Old 03-15-2006, 07:26 PM   #1
laweratj
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1997 Aerostar code PO171

My aerostar sometimes has trouble starting (more so when it is warm), and also has code p0171. Are these linked in any way? Any solutions?
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Old 03-15-2006, 10:45 PM   #2
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Re: 1997 Aerostar code PO171

lean bank (1).. front o2 censor.
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Old 03-16-2006, 02:13 PM   #3
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Re: 1997 Aerostar code PO171

already changed the O2 sensor (pre-cat). Still getting code. thanks.
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Old 03-16-2006, 08:48 PM   #4
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Re: 1997 Aerostar code PO171

did you reset teh computer after you changed the censor?
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96' Integra GSR / ITR cams/valvetrain. Skunk2 IM, Greddy evo2, AEM CAI, RMF Header, Megan testpipe, Hasport mounts, Eibach coilovers, Beaks tie bar, Megan H brace, Rota Attacks, F/R strut bar, Kirk 6 point cage, Bride Cugas, Takata 4 Point, ITR Steering wheel
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Old 03-17-2006, 06:59 PM   #5
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Re: 1997 Aerostar code PO171

If you mean clear the code, yes I did that. Is there another thing to resetting the computer?
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Old 03-17-2006, 07:09 PM   #6
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Re: 1997 Aerostar code PO171

unplug the battery for 10 minutes.
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96' Integra GSR / ITR cams/valvetrain. Skunk2 IM, Greddy evo2, AEM CAI, RMF Header, Megan testpipe, Hasport mounts, Eibach coilovers, Beaks tie bar, Megan H brace, Rota Attacks, F/R strut bar, Kirk 6 point cage, Bride Cugas, Takata 4 Point, ITR Steering wheel
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Old 01-28-2007, 11:50 PM   #7
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Re: 1997 Aerostar code PO171

Hey Lawertj,

Did you ever get your PO171 problem fixed on your 97 Aerostar? I realize it has been nearly a year since you posted. I have had the problem for over a year now. My van has almost 200,000 on it. I've replaced the entire exhaust system. I also replaced the cam position sensor, because it started making noise, but it didn't change the PO171 problem.

The interesting thing is that if I drive it on the highway after resetting it, it never comes on. When my wife drives it the short 4 miles to work, it stalls on her if she has the heater fan on.

I've asked in other forums, but your thread is the only one that has the exact thread name I'm looking for. I have had some suggestions of the EGR valve, or possibly the MAF sensor. I have replaced the MAF sensor some time back. Maybe it needs it again.
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