Random misfire from cranking

K-Series Programmable ECU installation questions / support issues
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dc5itr01
Posts: 61
Joined: Tue May 24, 2016 2:14 pm

Random misfire from cranking

Post by dc5itr01 »

Hi,
I have PRC kpro 4.
Since the upgrade, i have random startups with a misfire and engine light. It happens on average every 4 starts.
Hot or cold makes no difference.
It happens as follows,
Turn on ignition, crank, and engine starts. But with immediate engine light and bad misfire. Sounds like 3 cylinders working.
This happens with or without hondata usb connected.
I then have to off ign 1 or 2 times before it starts without error.
Logging shows nothing. Live view shows nothing.
I spoke to a buddy who has same problem since upgrade.
ANDREW please chime in here if u reading this.
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Spunkster
Site Admin
Posts: 22737
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Random misfire from cranking

Post by Spunkster »

Post your calibration and a datalog showing the issue.
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