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Discussion Starter #1
So I installed a specter cold air intake last night. Ran great going to work about 18 miles but just before I got home I started losing throttle response. No check engine light and all gauges read normal. Sitting in driveway I can rev it up no problem but going down the road it's just not acting right. My neighbor said that it's possible the truck has to re learn with the new intake. Any one else have this issue. 2004 LB7

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If it was a bigger intake the MAF sensor may have to be rescaled with a tune adjustment.
 

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So I installed a specter cold air intake last night. Ran great going to work about 18 miles but just before I got home I started losing throttle response. No check engine light and all gauges read normal. Sitting in driveway I can rev it up no problem but going down the road it's just not acting right. My neighbor said that it's possible the truck has to re learn with the new intake. Any one else have this issue. 2004 LB7

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Check your MAF. Sometimes new filters are over oiled, and will get filter oil on the MAF.
 

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Discussion Starter #4
Thanks for the input. It's not an oiled filter. I will check on the intake size difference.

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Thanks for the input. It's not an oiled filter. I will check on the intake size difference.

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You may still want to take the MAF sensor out and clean it, it just takes a little MAF /MAP cleaning spray to do the job. It doesent take much to cause those sensors to read wrong and no filter is perfect. Its something you should do from time to time anyway so nothing to be lost by trying it.
 

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Discussion Starter #7
Changed out the fuel filter. Don't think it had been changed in quite some time by the former owner. Also cleaned the MAF, and did a master reset by disconnecting the batteries and touching the positive and negative cables together for 30 sec. Runs amazing now.

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