Thread: timing jump problem- nissan data scan

Yes thats correct for the big jump in timing. Your going from the idle timing table to the regular timing table.

I've never ran into this problem with both my cars. Timing at idle via datascan is always stable (not in base timing mode)

Now with my experience checking timing at the distributor with a timing light has always been stable but always shows 5 deg lower timing when not in timing mode. When put into timing mode it jumps 5 degs showing the correct base timing.

lol wierd.. just my thoughts

If your idle is always high or low then it would max out the RPM idle delta trims and would show a constant value for the timing.

If you are hovering right around your target idle value then you will get some pretty good swings in timing to try to keep it right at your target.

I keep my idle a bit high, around 900rpms.

Now my idle rpm table is 800rpm at full operating temp. Which is failry close.
I have lots of experience with the actual nissan consult (I used to work at the dealer) and it has always showed a stable timing reading while idling?

hello, in my case, when accelerating fast, I see that the time drops to zero and then reaches about 20 degrees ..... and while in idael. time varies from 7 to 9 degrees.

my car Nissan NX2000 1992

this is normal?, because I feel the car very slow, no power

This doesn't sound normal. You should be bouncing around 15* BTDC at idle until you put it in "Set Timing Mode." Then it should be solid at 15*. What ECU and bin file are you running?

hi, is the stock ECU, unmodified.
when accelerating gently, without charge, the ignition timing reaches 32 degrees, but accelerated quick, ignition time drops to zero and then rises to 23 or 26 degrees,
At idle, the time is physically 15 degrees but in Datascan screen, is kept in jumping from 7 to 9 degrees...

my question is, if it is normal to fall to zero when rapid acceleration?
excuse my English, I'm from Venezuela, and thank you very much to everyone for your help

hi, is the stock ECU, unmodified.
when accelerating gently, without charge, the ignition timing reaches 32 degrees, but accelerated quick, ignition time drops to zero and then rises to 23 or 26 degrees,
At idle, the time is physically 15 degrees but in Datascan screen, is kept in jumping from 7 to 9 degrees...

my question is, if it is normal to fall to zero when rapid acceleration?
excuse my English, I'm from Venezuela, and thank you very much to everyone for your help

hello, in my case, when accelerating fast, I see that the time drops to zero and then reaches about 20 degrees ..... and while in idael. time varies from 7 to 9 degrees.

my car Nissan NX2000 1992

this is normal?, because I feel the car very slow, no power