96 running rich
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Senior User
Joined: Aug 2006
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From: San Mateo
96 running rich
I got an interceptor gauge for my 96 F150 with a 351W. I pulled a codde that says system running rich. I have had bad idling surges also where she revs down and splutters like shes gonna die then back to normal. Could the rich running cause this and how do I fix this problem.
Thanks, Shane
Thanks, Shane
Thread Starter
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Senior User
Joined: Aug 2006
Posts: 201
Likes: 0
From: San Mateo
The code I got was P0172. When I got in touch with Aero force they told me this code meant system was running rich. When you say check air cleaner is this the air filter and by plugs, is this refering to spark plugs? If this is the case, summit offer a tune up kit with spark plugs, wires etc, and I might get this. It sounds like a good deal, anyone know about it????
http://store.summitracing.com/partde...5&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
do not buy that, it is overkill and overpriced.
do not go to autozone either.
first, check air filter and replace it if it looks dirty.
second, remove one spark plug and see if it is fouled.
if you do replace plugs use motorcraft resistor plugs, no platinum anything.
do baby steps, not throwing parts that you do not need at truck ***** nilly.
soak plugs with some rust penetrant before removal.
do not break any off.
if in doubt use a shop, but you supply the plugs.
get a manual if you do not have one.
do not go to autozone either.
first, check air filter and replace it if it looks dirty.
second, remove one spark plug and see if it is fouled.
if you do replace plugs use motorcraft resistor plugs, no platinum anything.
do baby steps, not throwing parts that you do not need at truck ***** nilly.
soak plugs with some rust penetrant before removal.
do not break any off.
if in doubt use a shop, but you supply the plugs.
get a manual if you do not have one.
Last edited by quicklook2; Mar 16, 2007 at 10:30 PM.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
are you sure that you oiled the filter correctly?
regardless, pull it out and look at it.
no platinums because you do not need them, these trucks like the good old stuff.
if you get wires ger motorcraft.
if you need a cap/rotor get motorcraft.
i will bet your air filter is the problem and than the plugs fouled up because of lack of air.
regardless, pull it out and look at it.
no platinums because you do not need them, these trucks like the good old stuff.
if you get wires ger motorcraft.
if you need a cap/rotor get motorcraft.
i will bet your air filter is the problem and than the plugs fouled up because of lack of air.
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Elder User
Joined: Feb 2007
Posts: 829
Likes: 1
From: Goose Creek SC
K&N's are oiled when you get them if you bought a new one.....You just plunk it in and enjoy it for the first 100k...or so.......then you might have to clean and re-oil.
There is another thread about running rich with a bunch of other suggestions too....look up the page.......it's titled "oxygen sensor" I think
Good Luck
There is another thread about running rich with a bunch of other suggestions too....look up the page.......it's titled "oxygen sensor" I think
Good Luck
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Elder User
Joined: Feb 2007
Posts: 829
Likes: 1
From: Goose Creek SC
I agree......real dusty and dirty needs cleaning long before.......I always think in clean, and sterile ways......never have dirty thoughts.......i used to....but now i can't remember why......hehe
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