Ignition display mismatch

planetspeed · Post by **planetspeed** » Wed Jan 30, 2008 5:56 pm

Hi guys! s300 p28 on stock b18c5 here..As I was datalogging the engine at idle using a jdmp72 cal file, I had observed that the ignition reading on DISPLAY tab was not the same as it is on the low cam ignition table.But as I clicked the SET IGNITION tab to see whether the DISPLAY reads the same, it did.what could have caused this different reading?Thank you.

Post by **Spunkster** » Wed Jan 30, 2008 6:14 pm

impossible to say without a datalog and the calibration showing the problem.

planetspeed · Post by **planetspeed** » Thu Jan 31, 2008 8:14 am

Hope I got my log right coz this is the first time I would post logs..check the ignition on display tab vs true ignition on the table..

planetspeed · Post by **planetspeed** » Thu Jan 31, 2008 8:19 am

Spunkster/hondata, how do I run the logs when I download one anywhere in the forums?I tried to to download even my own log I posted above but I don't know how to play it.I opened a cal file but the play tab isn't there.sorry for my ignorance.

Post by **Hondata** » Thu Jan 31, 2008 9:33 am

At idle the actual ignition may not be the same as the tables - it's called 'ignition controlled idle'. Jumpering the service connector switch should disable this function of the ECU and they will match.

planetspeed · Post by **planetspeed** » Thu Jan 31, 2008 9:45 am

Thanks Hondata for the quick reply..so I'll just leave it at that?

Post by **Spunkster** » Thu Jan 31, 2008 10:18 am

You still have not posted your calibration so we can see what you are referring to.

planetspeed · Post by **planetspeed** » Thu Jan 31, 2008 10:34 am

I'm just using a stockjdmp72 cal file from the s300 calibrations list..I didn't change anything in the cal file except for the fuel trim where current inj. size is 370cc..