If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
'04 running rich
For those of you who like diagnosing strange problems I have a doozy
for you. The symptoms are as follows: Very rich smelling exhaust, inside of tailpipe VERY thickly coated with soot, badly carboned plugs. I have checked the following: Manifold vacuum (20 ish in/Hg at idle in gear), done an aceytelene test around the intake and throttle-body gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures are all over the map over the past 2 months I have gotten from 14 to 33! mpg using the same brand/grade of fuel driving the same routes every week. I have made NO changes to the vehicle WHAT SO EVER. This has me stumped. How about you. |
Ads |
#2
|
|||
|
|||
'04 running rich
|
#3
|
|||
|
|||
'04 running rich
|
#4
|
|||
|
|||
'04 running rich
> wrote in message ... > For those of you who like diagnosing strange problems I have a doozy > for you. > > The symptoms are as follows: Very rich smelling exhaust, inside of > tailpipe VERY thickly coated with soot, badly carboned plugs. > > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in > gear), done an aceytelene test around the intake and throttle-body > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures > are all over the map over the past 2 months I have gotten from 14 to > 33! mpg using the same brand/grade of fuel driving the same routes > every week. I have made NO changes to the vehicle WHAT SO EVER. > I seriously doubt your Jeep can run rich and not throw an OBD II code as a result. The O2 Sensor(s) are looking at the rich/lean condition, both before and after the CAT. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Running Rich - 92-4.0L | Les[_2_] | Jeep | 14 | October 27th 06 09:39 PM |
Running to rich please help! | Jay Cotty | Ford Explorer | 5 | August 4th 06 12:46 AM |
E30 running rich? | MarkS | BMW | 11 | January 16th 06 10:19 AM |
'91 L98 6-Speed Running Rich | Koolman365 | Corvette | 9 | July 12th 05 05:02 AM |
95 Neon running rich | Mike | Chrysler | 0 | October 14th 04 08:02 PM |