post #1 of Old 09-24-2012, 05:06 PM Thread Starter
mohr773
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97 jeep missing

I have changed wires plugs, upstream and down stream oxygen sensors the sensors was because of the codes the plugs and wires for good measure and it still seems to be running rich any suggestions?

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post #2 of Old 09-24-2012, 06:56 PM
r0b0
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Quote:
Originally Posted by mohr773
I have changed wires plugs, upstream and down stream oxygen sensors the sensors was because of the codes the plugs and wires for good measure and it still seems to be running rich any suggestions?
Throttle position sensor possibly? Or injectors?
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post #3 of Old 09-24-2012, 07:01 PM
Joe-4
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1997 TJ Wrangler 
 
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Let me know what you find out. My 97 is doing the same.
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post #4 of Old 09-24-2012, 09:02 PM Thread Starter
mohr773
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I forgot I changed the throttle position sensor first
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post #5 of Old 09-25-2012, 06:11 AM
pshivers
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2008 KK Liberty 
 
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What are your long term and short term fuel trims at idle and around 2000 rpm?
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post #6 of Old 09-26-2012, 08:56 PM
r0b0
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What the **** does that mean?
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post #7 of Old 09-27-2012, 07:12 AM
pshivers
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You said you changed the O2 sensor because of "codes". Using a scan tool, are the O2 sensors functioning now? Did the codes come back? Do they transition lean to rich? Is the upstream sensor stuck lean or rich? What are the short and long term fuel trim numbers doing in response to the O2 sensor signals?
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post #8 of Old 10-06-2012, 12:40 PM
Joe-4
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1997 TJ Wrangler 
 
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I just changed my check valve and it fixed the jeep from missing and running rich.
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post #9 of Old 10-06-2012, 01:42 PM
stephenpetrilak
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Quote:
Originally Posted by Joe-4
I just changed my check valve and it fixed the jeep from missing and running rich.
I have a 97 jeep doing the same thing missing n stalling I think I solved the problem change your idle air control valve clean the port n throttle body with gum out carb cleaner put back together If its dirty it telling the comp it not getting enough air good luck mine is running fine so far
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