red91
NAXJA Forum User
- Location
- exact location unknown
In dinking around today I thought I'd see if there were any codes. And it came up #21, but didn't set off the engine check light. Anyone know what it's telling me?
thanks!
thanks!
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91 xj Diagnostic code 21
- Thread starter red91
- Start date
red91
NAXJA Forum User
- Location
- exact location unknown
sorry to post twice...
badge714
NAXJA Forum User
- Location
- Youngstown, Ohio
Code 21---Oxygen sensor signal-- neither rich or lean condition is detected from oxygen sensor input. daleSCOTT FISCHER said:
red91
NAXJA Forum User
- Location
- exact location unknown
badge714 said:
So what do you think? Neither lean or rich condition detected? Makes me wonder if it's detecting anything, but if it isn't wouldn't my check light come on? Is jeep now makeing codes for NO PROBLEMS?
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