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99 XJ Classic Bucking / Stuttering

Old 09-11-2017, 06:26 PM
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Default 99 XJ Classic Bucking / Stuttering

Hey guys. Im getting some serious bucking in lower rpms on acceleration. When under the hood, if I just barely turn the throttle a tiny bit it almost stalls.
Once above ~1500 RPM, she goes fine.

brand new cat back exhaust and new down stream O2 sensor.
Here is the link to a video I posted of the problem:
https://youtu.be/Y3_Ibu96DjU
Old 09-11-2017, 06:46 PM
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Is the check engine light currently on? If so, what the codes?
Old 09-11-2017, 06:47 PM
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Originally Posted by jordan96xj
Is the check engine light currently on? If so, what the codes?
Nope no check engine light.
Old 09-12-2017, 07:39 PM
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New MAP sensor fixed the bucking problem.. but now my CEL is on..

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