Bad Cold Start

[Josh33]

I cleaned out the aac valve the other week and car was running great, wamed it up, set it on 900rpm buety.. for a bit.

now when I 1st start the car the revs jump from about 1,000 down to 400 every few seconds, ocasionaly stalling out.

on light acceleration it coughs and splutters badly.

After 3-4 mins, once the temp needles on about 1/4 it runs great

Im guessing theres something playing up in the cold start system

I've rechecked everything I touched in doin the aac clean, all in and good as far as i can tell

r33 gtst with only fmic and exhaust

any help would be great

[MBS206]

Do some resistance checks on the Engine temp sensor.

It's in the top radiator pipe. The one with 2 pins.

Make sure it's plugged in, if it is, make sure the resistances are correct for the temperatures (You'll have to search for what the resistance should be)

[R31Nismoid]

Could be AFM's playing up

Im having similar problems (yet again, god damn AFM's sometimes)... mine is nowhere near as bad when warm, infact barely a problem

Only cold as its not 'quite' getting the reading right so its hunting nastily.

[jay1]

air flow meter for sure

[Josh33]

cool thanks for fast reply's

il start with the afm tomorow

[LatinR33]

Hey,

I just thought I would post my solution. My car was having crappy cold starts with idle going all over the place.

Replaced my battery with a powerful dry cell battery and solved the problems.

Good luck