Cam angle spike and ignition retard.

ilovemyk20 · Post by **ilovemyk20** » Tue Oct 09, 2007 1:02 pm

I know i'm running rich because I haven't tuned partial throttle on this map yet, but this problem i have with another map as well..

For some reason, at least once during every data log, my cam angle jumps to 50 degrees for no reason. Shown in 1:27 of the data log.

Also, Shown at around 1 minute, the ignition takes sparactic dives up and down during acceleration at low rpms.

Almost as if someone retarded the ignition there, I have SOME knocks where the ignition gets really low. and try to fix them but they dont go away

www.teamdevotion.com/screwed.zip

Post by **Hondata** » Wed Oct 10, 2007 9:27 am

It is normal for the ignition to vary at idle - it is called ignition controlled idle. Step 1 is to get the AF ratio tuned - look at the short term fuel trim.

ilovemyk20 · Post by **ilovemyk20** » Wed Oct 10, 2007 5:18 pm

I know my a/f needs to be adjusted, i just started using this tune to see if it was a tune problem causing the low ignition

The low ignition happens during acceleration, not idle.

Also, can you explain the spike in cam angle.

ilovemyk20 · Post by **ilovemyk20** » Fri Oct 12, 2007 11:19 pm

Any help with this issue? fixed my fuel tonight, yet it still does, this. I reset my ecu and it went back to the right ignition but shortly after a few pulls, the ignition retarded in those area's again.

does or does not a kpro'd ecu still reduce ignition?

and why does the cam angle spike to 50

Post by **Hondata** » Mon Oct 15, 2007 8:28 am

None of the PR ECUs retard on knock - this is the behaviour from Honda, not from Hondata.

Get the AF tuned first before worrying about secondary effects.

ilovemyk20 · Post by **ilovemyk20** » Mon Oct 15, 2007 8:49 am

I fixed my fuel already, and i wasn't asking if kpro retarded knocks, i just wondered if a kprod ecu still had the behaviors of a honda ecu in terms of retarding ignition.