Will Not Start When Cold

[jap VL R32]

HI guys my r32 takes 5-6 turns on the key to start when its cold but when the car has been on for abit it starts first time whats going on with it?

[SMOKE'M]

HI guys my r32 takes 5-6 turns on the key to start when its cold but when the car has been on for abit it starts first time whats going on with it?

i got the same problem,when i got a new ecu,it has'nt been cold turned wright so thats one reason

thats all i got

good luck with it

[RB30-POWER]

for the first poster, if you don't have the engine in a skyline, make sure you have the "START" signal wire hooked up to the ecu, this signal, tells ecu its in crank mode and injects set fuel amount, which it will not if not hooked up obviously.

if its hooked up test your coolant temp sensor.

also try priming the pump a couple of times before starting, if fuel pressure has bled off overnight it may indicate a stuffed fuel pump check valve.

for the second poster, what ecu have you got?

cold tuning is needed, but it will more then likely never start as good as the factory ecu as alot of aftermarket ecus lack alot of cold start trimmings that the factory ecu's have to aid cold start.