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I've had my R33 for two weeks now and have come across a problem. Over the last 4 or 5 days it has become harder to start. Each time more so than the last. When it does start, it idles smoothly with no other hiccups throughout the rev range. I am the first owner of the car in Oz and I am wondering if the plugs are still for jap fuel (100 octane) and possibly fouled. Could it also be the AAC control valve or the bi-metalic valve?

One other thing I noticed. The car will idle roughly (sounds like three cylinders) but as soon as I touch the accelerator it idles nice and smooth.

Any suggestions?

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hard to know exactly what u mean, when mines cold and i start it i notice its hesitates afew times to bring the revs on cold start idle to about 1200ish rpm if i give the throttle a touch to help it there then its fine, to me its not an issue coz i have checked everything, and its only for 1 second on cold start up then there is no drama. Just check the spark plugs if ur in doubt!!! Its not hard to do champ!! Good luck

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i agree with SWEETr33 on this one

i have the 32 GTST and it hesitates a little when cold in the morning but other than those like 10secs its fine and then idles perfect.........i have noticed however my car has been of the road for 5 1/2 months now and i started it the other day and was a little worse mainly i think because of the lack of use

im pretty sure just get a set of new sparks and you should be OK

good luck

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frosty it could be plugs or more than likely just the fuel has gone a little stale from sitting in the lines for those 5 months. Should be an issue when u start it up again. I remember when i went to test drive a r33 that just got off the transport truck, hadnt been started for like 8 months and its ran on 5 cyl's for about the for minute till the stale fuel cleared and it got decent fuel into it

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Umm, has the battery got some distilled water in it? Harder starts are usually the sign of a battery thats struggling to cope. Especially if its come on all of a sudden.

My 32 is hard to start from cold, but its been like that ever since i got it, still no idea what causes it.

Red17

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By "rough startup" do you mean it struggles to crank over or just cranks over for a long time? If the latter, it's a very common problem on many 'lines. The way I get around it is if it doesn't kick over within 2 seconds, I let go of the key, wait 1-2 more seconds, then crank it over again, and it will start within 2-3 kicks. If I keep cranking it over and it goes beyond 2 seconds, it will not start for another 4-5 seconds or so.

Recently I have adjusted the cranking ignition injector duty cycle times on my PowerFC which has pretty much fixed this problem. If you're stuck with a stock ECU then you can't fix it this way.

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By "rough startup" do you mean it struggles to crank over or just cranks over for a long time? If the latter, it's a very common problem on many 'lines. The way I get around it is if it doesn't kick over within 2 seconds, I let go of the key, wait 1-2 more seconds, then crank it over again, and it will start within 2-3 kicks. If I keep cranking it over and it goes beyond 2 seconds, it will not start for another 4-5 seconds or so.

The car starts after 1-2 seconds of cranking but feels and sounds like it is running on 3 cylinders. But as soon as I touch the accelerator pedal it revs up to about 1200 rpm then settles into a steady idle. Wierd.

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