Running lean all cylinders
Thread Starter
|
New User
Joined: Jul 2013
Posts: 1
Likes: 0
Running lean all cylinders
Working on a 1992 inline 6.
We've replaced oxygen sensor, MAF sensor, Ambient air temp sensor in the manifold as well as the manifold gaskets.
172, EGO not switching; 412(cannot raise RPM) seems meaningless.
A later codes that occurred was 213, spout circuit open. It's been pulled and the circuit tested good.
Plugs are all fine.
Nothing changed from any of the above. Still runs pretty rough. Barely drivable.
We've replaced oxygen sensor, MAF sensor, Ambient air temp sensor in the manifold as well as the manifold gaskets.
172, EGO not switching; 412(cannot raise RPM) seems meaningless.
A later codes that occurred was 213, spout circuit open. It's been pulled and the circuit tested good.
Plugs are all fine.
Nothing changed from any of the above. Still runs pretty rough. Barely drivable.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
How have you determined it's running lean.. . plugs are white?
What is fuel consumption like?
Does it idle smoothly?
A stuck open EGR valve will cause idle problems and make the engine run lean so that's something you should investigate.
What is fuel consumption like?
Does it idle smoothly?
A stuck open EGR valve will cause idle problems and make the engine run lean so that's something you should investigate.
Thread
Thread Starter
Forum
Replies
Last Post
flareinkfifeo
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
6
Sep 4, 2010 03:46 PM
timothy47129
Explorer, Sport Trac, Mountaineer & Aviator
13
Feb 13, 2006 10:09 AM
rmb454
1987 - 1996 F150 & Larger F-Series Trucks
16
Apr 14, 2005 09:51 PM
TC56
Explorer, Sport Trac, Mountaineer & Aviator
2
Sep 9, 2002 03:23 PM
