Cold Start Tuning Power Fc Datalogit

[Ruthr33]

Hey. Gotta take the old skyline to get sum suspension tommoro. App at 730 in the morning. Car runs pretty well in all areas for now except cold start. Mechanically I've been over everything many times. I've just put new injectors of a similar size injectors. My problem for now is it's hairy when cold. Too much throttle and it will die. I think my injectors are slightly smaller than previous ones. I had 550 and I think these are 525 ish Mabey even 500.

Anything I can to with my laptop to get it out the driveway in the morning without having to belt the shit out of it?

[Ruthr33]

Oh yeh. The afrs are 14.-14.7 at this point. I'm not a tuner but I'm guessing it needs a lil bit of enrichment to keep it happy like a choke. Mabey around 12. But then what do I know.

[Dose Pipe Sutututu]

add more fuel to your water temp correction table...

1st column is when your l oad is at 1792, i.e. no load

2nd column is when your load is at 8960, which is approximately atmospheric, i.e. 0.00 psi

ECU will interpolate between the two to determine how much correction is required...

so now when your car is super cold, say 30c you see in the example there will be 14% more fuel on no load and 29% more fuel when you hit atmospheric..

Now just play around with those numbers till your AFRs richen up vs. water temp

Something I would aim for

30c = 13.5 AFR

50c = 14 AFR

80c = 14.7 AFR

Also if you have issues cranking at whatever temperature the cranking table will address that.

[89CAL]

Changed injectors. Have you fixed the injector settings up?