BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
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 96 9c1 p0174 code, help

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Posts : 1
Join date : 2012-08-31

PostSubject: 96 9c1 p0174 code, help   Fri Aug 31, 2012 12:40 am

hi just joined, i have a 1996 9c1 throwing a p0174 bank 2 lean it runs super rich on the passenger side,thats why i dont understand the code saying its lean on bank 2, and it idles rough and then smooth. ruff when at a light for a while, i have been trying everything, engine temp sensor, maf, opti, plugs and wires. new 02 sensor, im am running out of ideas and hate to keep dumping money into this thing, engine light comes on and stays on. can anyone help or have any ideas? im in the nashua area. thanks for your time -jim
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Posts : 4278
Join date : 2009-03-20
Location : Revere, MA

PostSubject: Re: 96 9c1 p0174 code, help   Fri Aug 31, 2012 6:25 am

Only time I had that code it was due to an exhaust leak

Perhaps a broken bolt on the manifold? #8

PS....if your going to throw parts at a problem...keep the spares Arrow


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Posts : 1563
Join date : 2010-06-19
Age : 31
Location : working a corner near you

PostSubject: Re: 96 9c1 p0174 code, help   Fri Aug 31, 2012 6:54 am

small piece of electrical tape on the cluster makes a Check engine light disappear fast...... Arrow

...... check to see if you have a cracked manifold.....
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Posts : 2124
Join date : 2011-01-11
Age : 35
Location : Warren, MA

PostSubject: Re: 96 9c1 p0174 code, help   Fri Aug 31, 2012 7:10 am

Leaking intake manifold gasket. Change it then clean the o2 sensors.
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