R34 Rb25 Neo Cold Start Issue

[mwracing]

Just asking a lil help from down under.

R34 Neo rb25det.

Every morning when the car starts, ( 8-12 celcius ) It will hold idle fine, and will warm up no problem, but, if I try to drive while the coolant is still cold, every shift it will bog out when I touch the gas, not stall, but like its hitting ignition cut or something. If I step on the gas, or rev higher before the shift happens then it can overcome the hesitation. Once coolant gets to normal, 70-80c, zero issues.

[Therealsandybang]

Wild guess. Anti freeze needed?

[Therealsandybang]

Not sure though as usually never have to deal with temps as low.

[mwracing]

No, the coolant level is fine.

[Therealsandybang]

Sorry I typo. I meant have you flushed the system. And checked to see what comes out.

[Dose Pipe Sutututu]

are you running an aftermarket ECU? if so the enrichment table(s) for water temp & IAT has not been setup correctly OR someone has set a rev limiter when the motor is cold.