Car Won't Start When Warm

[Randon_I_Am]

As above, my 34 gtt will start fine in the morning. But after i drive it and it heats up the next time i try to start it just turns over and over and won't fire up.

Anyone got any ideas what could cause this?

Cheers

[blind_elk]

For the 32s, it is either the engine temp sensor (disconnect it, see if engine starts), or a fuel pressure problem.

[Curmi]

try replacing the cas sensor

[Kenna802]

try tipping ice water on the c.a.s when car wont start ( a racq driver told me to do this my falcon )

[Randon_I_Am]

OK so it "seems" to be fixed.

I always thought that if your car would "Turn Over" but not fire it meant that it wasn't the battery...

It's starting when warm now with a new fully charged battery.

[bluey33]

try tipping ice water on the c.a.s when car wont start ( a racq driver told me to do this my falcon )

Common in Fords and Holdens when hot weather and hot motor as the metal in the engine speed sensors 'warp' so to speak in the heat.

Not common for nissans.

[Moodles2]

Might want to look into the ignitor, heat brings it out if its a dodgy one.

[Socrates]

R34's don't use ignitors i'm pretty sure?

they got ditched in the Series 2 R33 update yes?

Edited January 10, 2011 by Socrates

[Moodles2]

Yup I wasn't sure about the external ignitor being on R34s, seems it was indeed ditched for individual ignitors in each coilpack

On that note, try running without the coilpack cover on

[Kinkstaah]

Was searching for solutions to this when I found this thread as I have the same issue...

In my case the doesn't really like starting even when cold, but it does start, but is hesitant to do so. I have had it start when warm but it's pretty inconsistent. Inconsistent enough for me to carry a can of start ya bastard in the glovebox.

This is not an ideal solution..

Have replaced Battery (brand new), brand new spark plugs, coil packs (splitfires)

Same as OP.. just sits there turning over forever (or until battery dies), for example BEFORE I bought a new battery, I had someone jump start this car with their car, and a battery pack thing, and I believe the car turned over after about the 150th attempt.

[DVS JEZ]

So it starts with start ya bastard?

That tells me there is a fuel supply issue

[Kinkstaah]

So it starts with start ya bastard?

That tells me there is a fuel supply issue

Yeah, it starts with a quick spray.. 100% of the time, at least the... handful.. of times I've tried it.

I guess that makes sense also given almost everything else is ruled out.. also I suppose it starting when cold, i.e running richer due to.. it being cold and trying to warm up. That said, it's effectively a brand new Bosch 040, that is certainly pumping fuel fairly happily every other time..

[Randon_I_Am]

Clogged injectors?

[Kinkstaah]

Injectors are literally brand new, have done about 100kms. Believe this issue occured (ONCE, while jump starting the car, before new battery too) before they were put in.

For what its worth, car did this.. this morning, at 6am, when it was about 10C outside. I guess it just seems to happen more when warm. If I had to guess, I'd say it just won't kick over about.. 20-25% of the time.