11-02-2009, 11:35 PM
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#1 |
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Registered User
Age: 25
Join Date: Jun 2008
Posts: 117
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yet another po171 code
short rundown of my problem. 2002 s10 2.2l 5speed. Flex pipe on my midpipe broke last week on the way to work. Replaced the midpipe the next day when the part came in. Did drive the truck to and from work. installed new midpipe and truck ran great. About 15min worth of driving and truck dropped #4 cyl. Though it might be something strange with o2 sensors so i unhooked the battery to reset the computer. no change. Truck was pouring unburned fuel from the exhuast and spark looked good, #4 cyl was flooded with gas and plug was wet, so though i had a stuck fuel injector, changed the #4 injector and replaced plug. No change. Borrowed a ecu from a buddies 97 s10 just for shits and giggles, truck ran exactly the same way. Now truck is throwing a p0171 code. seen alot of posts about this topic but nobody seems to post a final solution. So hopefully some of you guys that have had a similar problem can put your two cents in. Also the fuel pump is new and am getting 60psi of fuel pressure at the injector rail. HELP!!!!
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11-03-2009, 06:59 AM
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#2 |
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Registered User
Join Date: Sep 2009
Posts: 89
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Re: yet another po171 code
check fuel pressure?
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11-03-2009, 01:21 PM
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#3 |
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Registered User
Age: 25
Join Date: Jun 2008
Posts: 117
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Re: yet another po171 code
got 60psi all the time. I dont know if i mentioned when i unplug the #4 spark plug wire nothing changes. But if i unplug the wire from the coil the whole car dies. ??????????????????????help?????????!!!!!!!!??????? ??
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11-03-2009, 08:59 PM
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#4 |
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Registered User
Join Date: Sep 2009
Posts: 89
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Re: yet another po171 code
is that cylinder getting spark?
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11-04-2009, 12:45 AM
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#5 |
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Registered User
Age: 25
Join Date: Jun 2008
Posts: 117
Location: User is: OffLine |
Re: yet another po171 code
strong spark on all cyl's replaced coil and wires today just to try. good compression too. im stumped man. totally stumped
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11-05-2009, 12:31 AM
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#6 |
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Registered User
Age: 25
Join Date: Jun 2008
Posts: 117
Location: User is: OffLine |
Re: yet another po171 code
sorry guys bump for my own problem. takin into the shop tomorrow. let y'all know how it works out.
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11-05-2009, 11:16 PM
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#7 |
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Registered User
Age: 25
Join Date: Jun 2008
Posts: 117
Location: User is: OffLine |
Re: yet another po171 code
well i am officially retarded. i thought i changed my #4 injector because the injector i changed was across from my #4 wire, but nope, changed number four today, the REAL number four and truck runs like a top, like i said, retard. i hope this helps somebody
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