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Old 08-27-2022, 05:26 PM   #1
speedwrench44
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Join Date: Feb 2020
Location: Heldnfelt Texas
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Help: 67 Burb w/L83 cruise control

67 suburban with 2015 L83 engine, stock ecu, 2002 4L60 trans w/TCI EZ-TCU controller. Dakota Digital cruise control. Not able to get the cruise control to work without surging/hunting
DD has suggested setting the long term and short tern fuel trim temps to 50* and lowering the sensitivity in the throttle pedal. Neither has cured the surge problem. CC works thru the ecu except it picks up speed signal from EZ-TCU.
Set at 60mph it slowly drops off to around 57 then unlocks converter and accelerates to about 64, then slowly drops back off. Each surge cycle lasts about 20-30 seconds

Anyone have any suggestions?
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Old 08-27-2022, 06:45 PM   #2
LockDoc
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Re: Help: 67 Burb w/L83 cruise control

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I will move this to the LSx Swaps forum. I think you will get more responses there....

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Old 08-28-2022, 12:09 PM   #3
speedwrench44
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Re: Help: 67 Burb w/L83 cruise control

Thanx
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