Rb25det Neo Needs Some Revs To Help It Start?

[DoseVader]

Hi Guys,

So basically I had 550cc injectors, Z32 AFM and a highflow installed in my r34 and ever since getting the car back from being tuned while starting the car i need to give the car some revs while turning the key to get it stated, the warmer the car the more revs that are needed to get it started. Any ideas what might be causing this, I am really hoping it's just a shitty tune as the car was never doing this before?

I am thinking about getting the car retuned in a couple of weeks at a different shop but just want to see what other people think to try eliminate other factors first.

[Ben C34]

Sounds like a shit tune as it wasn't doing it before.

I would ask who ever tuned it to fix it. But realistically I would probably just want to go somewhere who knows what they are doing. if they can't get it to start nicely I wonder how bad the rest of the tune is.

[DoseVader]

Injectors are brand new so too so fuel should be flowing pretty freely through them. Not going to name the shop that tuned it but they are ranked one of the better ones in QLD. Last time they tuned my car it was hitting boost cut in second gear and would not rev past 4,000rpm so I took it back but don't think I will this time will just change shop all together.

[Ben C34]

Sounds like a new tuner is the go.

[89CAL]

You dont give it any revs if the car is running

I think you mean you need to press the throttle pedal

If you need to give it some throttle, then you need to give it more air, sounds like the car is to rich on start up

cranking enrichment needs adjustment

What ECU?

[DoseVader]

Yeah sorry thats what i meant ahahah I am running a nistune.

[89CAL]

Too much fuel in the cranking table by the sounds of it. Should not have issues starting the car right after it was tuned.

[DoseVader]

I agree time to move workshop/tuner.

[triggerhappy]

Is it only cold starts or all the time? I have had the issue with cold starts and the tuner said to bring it back and leave it overnight so he can fiddle with it cold.

[DoseVader]

Cold and hot starts it's even worse on hot starts, it takes less acceleration on cold starts to get it going.

[Dose Pipe Sutututu]

chance there's too much fuel in the cranking table vs. water temp.. you would need to reduce it OR there's not enough fuel in the post start table.