cam advance goes to 45 deg during cruising in 4th gear??

trek95 · Post by **trek95** » Thu Feb 19, 2009 10:24 pm

Hello,
I am new here, but been playing with Kpro for awhile now. NICE product by the way... love it!!!
So, I have a stock K24a2 in an EK with the the VTC milled to around 6.04 mm.

Here is the problem:
I see in a data log that during cruising in 4th gear, the camcmd will suddenly jump to 45 deg(set to 25 deg for cruising) and then a little while later back to the 25 deg for no apparent reason? And the max deg in the calibration at full throttle is 40 deg. So I cruise along fine at 25 deg., then up to 45 deg, then back to 25 deg? It's strange.

I noticed there was somebody else that kinda had a similar problem here on the forum and you recommended a few things, but none of them seem to be the problem?
Not a major issue, but I would like to know how to correct this?
Thanks in advance

trek95 · Post by **trek95** » Thu Feb 19, 2009 10:36 pm

Sorry here is some more information:
PRB ECU, I can get the Kpro serial tomorrow
K24a2 in an EK,
AEM CAI for K series
Stock TSX header with custom catalytic pipe and 2.75" exhaust to a 2.5" twin loop
hondata intake gasket
RSX-S throttle body
Hasport harness

trek95 · Post by **trek95** » Thu Feb 19, 2009 10:42 pm

And if you see anything else that seems out of the ordinary or I did wrong, please let me know...please

Post by **Hondata** » Fri Feb 20, 2009 9:09 am

Is this only during overrun at mid-low rpm?

Try disabling the fuel overrun cut off delay (closed loop) and set the overrun cutoff to 20 kpa (advanced). Sometimes smooth out the cam angle table helps too.

I believe that this is made worse by the ECU during its learn procedure after having the memory erased. Engine swaps don't connect the keep alive power to the ECU, so the ECU will do through the process every time the engine is run. Anyhow, try the above changes.

cranny · Post by **cranny** » Fri Feb 20, 2009 9:46 am

wow that is wierd isnt it.

trek95 · Post by **trek95** » Thu Feb 26, 2009 9:24 pm

Yes, this was just during cruising.
I have tried the new "TSX 04-05 Header cai" calibration and I see that the fuel overrun cutoff delay is set to 10, this is lower than before. Should it be 20 or 10?
Also on the new TSX calibrations, could you give us some info on the HP/TQ resulted from them. I can use this as a guide when I have get it on the dyno.
Thanks in advance