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General Forums => The Mess Hall => Topic started by: tallrugbyguy on April 14, 2009, 04:26:29 PM

Title: warm up cycle question
Post by: tallrugbyguy on April 14, 2009, 04:26:29 PM

95 yj 2.5 liter
i have a lumpy acceleration when i first start my jeep. after warm up it is fine.
i assume i have a sensor out since i think that different sensors are used during the warm up / running temp.
any input would be great! thanks

Title: Re: warm up cycle question
Post by: jfrabat on April 19, 2009, 01:26:26 PM

Quote from: tallrugbyguy on April 14, 2009, 04:26:29 PM

95 yj 2.5 liter
i have a lumpy acceleration when i first start my jeep. after warm up it is fine.
i assume i have a sensor out since i think that different sensors are used during the warm up / running temp.
any input would be great! thanks

If I am not mistaken, during the warmup cycle, it goes to the default programing, as the O2 sensor is not yet taken into consideration...  Could be the reason.