Tried Everything -- on/off p0138 + p0141 & 15mpg -- 98 XJ
#1
Newbie
Thread Starter
Join Date: Jul 2012
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Tried Everything -- on/off p0138 + p0141 & 15mpg -- 98 XJ
Well, over the course of the last few months I have systematically replaced everything that is usually listed as the common culprits for this code combination.
New 02 Sensors x2
New Catalytic Converter
New Idle Air Controller Valve (IAC)
Upgraded neon injectors
Yet I am still getting an intermittent p0138 and -p0141 combo which turns the CEL on. The CEL may be off for two weeks, then come on for 4 days, then go off again. It's rather temperamental, and that's what is unusual.
And unfortunately, getting 15 mpg every tank is just sad. I was getting 19+ when i bought it 10 months ago.
I assume, from searching, that the problem likely lies in the circuit. Before I start tracing wires though I just wanted to ask one last time for any extra input or advice on how to check the circuitry. If you have any input, please let me know. Thank you,
New 02 Sensors x2
New Catalytic Converter
New Idle Air Controller Valve (IAC)
Upgraded neon injectors
Yet I am still getting an intermittent p0138 and -p0141 combo which turns the CEL on. The CEL may be off for two weeks, then come on for 4 days, then go off again. It's rather temperamental, and that's what is unusual.
And unfortunately, getting 15 mpg every tank is just sad. I was getting 19+ when i bought it 10 months ago.
I assume, from searching, that the problem likely lies in the circuit. Before I start tracing wires though I just wanted to ask one last time for any extra input or advice on how to check the circuitry. If you have any input, please let me know. Thank you,
#5
Newbie
Thread Starter
Join Date: Jul 2012
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Thank you, but no. I was getting 19 to 20. Apart from the better injectors, it's completely stock, no lift or anything, with 90k miles on it so I know it can get better if I can work out this O2 sensor issue.
Thread
Thread Starter
Forum
Replies
Last Post
BlueXJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
75
01-09-2024 02:54 PM
redbaron4850
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
06-25-2011 02:48 AM
ca441970
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
03-19-2011 12:24 PM
gully369
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
10-31-2009 06:11 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)