bmauto
  •  bmauto
  • 53.8% (Neutral)
  • Newbie Topic Starter
2020-04-09T02:48:34Z
Done cloning using Hexprog/Hextag. Stated there completed.
Then we plug it in. Car can be start. Car idle is up and down like misfiring.
And there is about 95 fault when we use ISTA.

Do we need to do indiv coding/indiv prog for the clone dme??
Need Help Please.
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mbenztech
2020-04-09T05:45:14Z
When cloning MSD8XX you might have to do throttle valve relearn..... all 95 codes in DME??? Have you tried clearing codes?
Autohex_II_BMW
2020-04-09T06:34:29Z
Originally Posted by: bmauto 

Done cloning using Hexprog/Hextag. Stated there completed.
Then we plug it in. Car can be start. Car idle is up and down like misfiring.
And there is about 95 fault when we use ISTA.

Do we need to do indiv coding/indiv prog for the clone dme??
Need Help Please.



did you check the fault codes in dme.
STF PERFORMANCE
2020-04-19T00:15:18Z
I had this problem when I cloned an msd 81.2 with hextag had to do a full car software update to cure the problem.
abc123
  •  abc123
  • 100% (Exalted)
  • Advanced Member
2020-04-19T05:24:21Z
Turn the key ON, leave the key on for 2 minutes, clear the codes, turn the key OFF (take key out), leave the car OFF for 2 minutes, turn the key ON leave the key ON 2 minutes. Start the car. it will be OK.
henal
2020-04-27T14:04:36Z
Ive experienced the Miss fire when cloning MSD81 as well is there any solution ?


Infamous
2020-04-27T14:25:34Z
Originally Posted by: henal 

Ive experienced the Miss fire when cloning MSD81 as well is there any solution ?




Yes...actually fix the misfire by changing coil,plug or injector.
henal
2020-04-27T15:16:09Z
Mate nothing to do with coil or any thing ! original ecu was slightly water damaged
abc123
  •  abc123
  • 100% (Exalted)
  • Advanced Member
2020-04-27T15:30:56Z
Originally Posted by: henal 

Mate nothing to do with coil or any thing ! original ecu was slightly water damaged


Misfire will not be caused by software issue, cloning, programming etc. If original had no misfire and donor does then donor is defective. Also, when talking about misfire, it is helpful to do some basic diagnosis, like check for spark and injector pulse on the affected cylinder, check spark plug condition, swap spark plug / coil / injector to see if misfire follows.