R33 Strange startup?

[WLD747]

ive got r33 with the usual mods like cooler and exhaust. In the mornings lately when you start her up she sort of feels like shes gona stall. The revs are very low and struggling after a few seconds the revs climb up to 1.3rpm and shes ok! strange?

anyone had this before, what could cause this?

thanks in advance

ak

[NuGGeT]

mine does the same thing, tho sometimes she does stall.

to solve it just press the gas as you start her up. she'll be fine once she warms up.

[DJ984]

what could cause this?

A cold engine... any cold engine will do this, it just has to warm up....

[WLD747]

it never use to do this before only recently. anyone know if the crank angle sensor could play a part in this!

[heno]

hey mate mine does the same thing now. and yes i did move the crankangle sensor. that is my first impressions to. did you play with it?

[WLD747]

it never use to do this before only recently. anyone know if the crank angle sensor could play a part in this!

[Penfold]

I wound my timing back a little and it did this - surging & erratic for first 2 minutes of idling/driving. Gonna move it forward again & see if that fixes it.

[slayer_1971]

yeah...my car does this as well

[WLD747]

i got my timing advanced a bit last week and now it does this. Have to play around with the crank angle sensor.

[Guest RedLineGTR]

just thinking about it i'd rather it rotate abit slower when i first start the car to get the oil going to where its meant to be without getting high rpm's when starting. But i used to get when i didnt drive my car much like about 5 days or a week usally i drive it every 2-3 days and i dont get it. So i guess it would have something to do with really cold starts.

[sweetr33]

crank angle sensor wont change anything. thats what tells the computer the info it need to fire etc, if it doesnt run bad when driving then dont touch the crank angle sensor. Mine hesitates for about 2 seconds on cold starts but then is fine.