Getting crappy gas mileage after . . .
10-14-2012, 07:06 PM
#1
Newbie
Thread Starter
Join Date: Mar 2010
Location: Mesa Arizona
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Getting crappy gas mileage after . . .
... after having a Check Engine light and replacing: plugs, air filter, header O2 sensor, and fuel pump assy. The O2 sensor was damaged by a rock, and it had needed the check valve replaced for some time...
So I did all this, and erased the CE light (I have a code reader), it now starts first time and runs good, but the exhaust still smells rich and it's getting about 10 mpg instead of the 14-15 it got before . . .
There is another O2 sensor at the cat converter, but at $75 I'm not sure that'll make any difference.
I did run a couple of bottles of injector cleaner through for the hell of it too.
Any ideas ??
So I did all this, and erased the CE light (I have a code reader), it now starts first time and runs good, but the exhaust still smells rich and it's getting about 10 mpg instead of the 14-15 it got before . . .
There is another O2 sensor at the cat converter, but at $75 I'm not sure that'll make any difference.
I did run a couple of bottles of injector cleaner through for the hell of it too.
Any ideas ??
Thread
Thread Starter
Forum
Replies
Last Post
pantallica20@aol.com
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
09-26-2015 07:05 PM
Jooman07
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
09-20-2015 03:12 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)