Starting Issues?

[mindflux]

Hey,

Well following my other post where I talked about starting issues, I thaught i would post this as a seperate topic.

Anyway, My R32 Gts-t seems to have random starting issues. Basically when i leave my car in the garage over night. By the morning when i start the car it some times has problems starting.

These problems include..

* Some times wont kick over, so a second attempt is needed

* Some times will start and very slowly build up the revs enough

* Some times will idle very low (100Revs) and i need to stab the accelerator to start it.

Now after doing some thinking, I first thought it was my battery , however I think The battery is fine because accroding to mt turbo timer, the battery voltage is about 13.5v - 14v Which is apparently normal??

As for the instance where it sat at very low revs, I think this maybe because I left the heater/ de-mister on and the car was trying to cold start at the same as trying to run the air con, hence not supplying enough power.

This leads me to think It maybe my Spark Plugs?

Which I have not has a chance to change.

So what Im asking pretty much is, has anyone else had had this problem, and what solutions did you come up with?

Thanks In advanced.

[strutto]

Spark plugs are worth a try...

Could also be a dirty air filter, or lazy fuel pump / blocked fuel filter...

[09ONE_32]

Yeah, my 32 starts like a **** as well, I have to wait until it is fully primed, then to start it I have to give it gas until it catches, then after that it is fine. will only happen when it is the first start, or when it has been sitting and become cold again. This leads me to believe that I have a dicked cold start sensor.

[mindflux]

Our interest. do you park your car in a garage and have a clothes dryer running?

Just a stab in the dark..

[CGB_R32]

mines a bitch to start aswell and its always in the garage but this has only happend when i changed the standerd plugs (what eva it came off the show room with) with some NGK's of some sort BP something or other and that was 2K km's ago and its only now started to start regularly so plugs might be the go there.

[mindflux]

So in english your saying ...

You had the same problem, you then changed your plugs and your problem was fixed?

[fatz]

you might have a earth problem

might want to check all you conectors

just think of the fun you will have for 5 hours cleaning them 100%

[CGB_R32]

So in english your saying ...

You had the same problem, you then changed your plugs and your problem was fixed?

ahhh no i HAVE the same problem it only happend when i changed the plugs bcoz i think i downgraded the plugs ill be investing in some platniums soon and i suggest u do the same i dont think having inside or out has an effect.

[mindflux]

Ahh ok .. i getcha now.

I had a really bad starting issue this morning..

i think the vlot meter reader thingy said the battery was at 11v or something..

im going to put some copper plugs in and see if that fixs it

[CerealKiller]

i had the same problem but I got a new fuel pump and that fixed it up.

[32ANA]

hmm yeah check ur plugs and all that, i had same issues when its cold in the mornings. clean out ur air filter, and also chuck a bottle of injector cleaner into ur fuel next couple of times u fill up, works wonders. get more km's out of each tank, give it a go.

~anna~

[mindflux]

Hmm So much advice..

I forgot to mention, when I drive off the car feels a bit slugish, like just before it comes on to boost it feels like it kinda hits a point and i kinda have to give it more acceleration to get on to boost.

Im pretty sure this goes away after the car has warmed up, and apparently its a common thing (dont take my word for thaugh though).

The car came with what looks like an autobahn pod, so i think ill just replace it.

As for Injector cleaner, ive heard a few bad things about that stuff, like it can stuff up your plugs?

anyone else heard that?

[rmahnovetsky]

I have the same problem and it seems to get worse with the colder weather. I've tried nearly everthing to erradicate this problem like -

1) clean the AFM, AFC,

2) check spark plugs,

3) check for leakages in the houses,

4) clean all electrical contacts,

5) check TPS,

6) clean the throttle body

7) Test the oxygen sensor

and still no luck But there is still a few more things to check.

Could be leaking fuel injectors or fuel pump - but from my reaseach in other forums it is more related to when you car is at operating temperature then you switch it off and start it up again after ~10mins and it can't idle properly for 2 mins then it becomes ok. But it is still worth trying to test. I was going to test this last week but the ony fuel pressure sensor I could find was $150. Probably cheaper to get a mechanic to test it. If anyone knows where to get one please tell me.

Apparently there is a wax-up(named something like this) idle device used for cold starts. It is situated under the plenum chamber and I can just see it with a torch. Looks like a mission to access it. Anyway I read in the skylinesdownunder forums that one guy replaced his one and the car never had a cold start problem again. Something I need to try. Can anyone agree with this?

My 2c of ideas

[mindflux]

Thanks for the information. My Car is suffering REAL bad at the moment.

Im going to try and get these bloody spark plugs changed, but its been a hassle to work out the best time/money :S

I have heard of leaking injectors before.

I really hope changing my spark plugs will fix this problem.

Its got me really confused. :S

[rb25]

mindflux: recently i installed a powerfc and retarded the base timing on the cas (its untuned). after i did this the car was very hard to start cold, takes a few hits of the key, take about 5 seconds to get upto idle (800rpm). so i rotated the cas back to centre and its all good now. it might be worthwhile checking that your cas hasn't slipped, or even advancing it a tiny bit to see what that does, just dont advance it too far.

-rb25

[mindflux]

Cas = Crank Angle Sensor ?

Cas = Cold Air Sensor ?

I keep getting these 2 confused.