aldl fuse blown while tuning
07-18-2019, 10:08 AM
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aldl fuse blown while tuning
Anyone ever had an aldl fuse blow while having hp tuners hooked to their vette? I was in the process of making changes and the fuse blew, now the car wont start or turn over. After the fuse was replaced, now the hptuners wont connect to the vehicle. 2009 auto base car
09-02-2019, 01:23 PM
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St. Jude Donor '13-'14-'15
What fuse did you replace ?? GM hides the fuse to the OBD2 port on the cigarette lighter circuit--That fuse when blown will not allow ECM communication
ALSO It is a good idea to dis connect one battery lead for at least 1 hour---This will unlaod the ECM completely and re set it
You will NOT lose your tune however the ECM will have to re learn the fuel trims at P/T--So it may ilde weird andrun weird until the ECM "learns out" Tghis normaly takes about 50-75 miles of normal driving
ALSO It is a good idea to dis connect one battery lead for at least 1 hour---This will unlaod the ECM completely and re set it
You will NOT lose your tune however the ECM will have to re learn the fuel trims at P/T--So it may ilde weird andrun weird until the ECM "learns out" Tghis normaly takes about 50-75 miles of normal driving