Auto choke set backwards?

[Deefadog]

Very strange things happening here My idle from cold and then when warm was all set, was spot on, I then had the head off for some work, and now when i start the car from cold it idles at 960/1040 and when fully warm is is dead on 1200rpm? Should be the other way around I would have thought!

Could it be as simple as some sensor has been pluged in the wrong way round? Any ideas guyz?

Cheers

[Gambit]

if the head was off then id check to see that the ISV/Cold Start temp sender is connected properly (on the right of the head beside the water outlet)

you know the drill, turn the ignition on then feel the ISV to see if its buzzing/vibrating. if not then check the sender.

sounds like your mechanic has just would the idle screw out so that it idles correctly at cold. basically just to get you out of the garage!!

[Deefadog]

Thanks mate, I'll check the ISV/Cold Start temp sender!

If this is ok what's the next step? Follow the idle setup guide again, I have the link somewhere vortex i think!

Whay would the idle setup have changed?

[Gambit]

well if the ISV temp sender aint working the car will be very hard to start when cold and will idle somewhere around 600rpm for about 5mins before gradually getting upto operating temp and rpm

so after they get it started they just turn the idle screw to wind the rpm up that bit extra

look up GVK motorsport - infact i might make it a sticky on this forum.

[Gambit]

http://www.btinternet.com/~gvk_motorsport/16valvestall.html

[Deefadog]

Sorry to be a pain but can you shoe me with a pic which one is the ISV/Cold Start temp sender.

[Gambit]

there is 3 senders around the water outlet on the side of the head

of the top of my head, the wiring is as follows

blue one is for ECU
green/red is for the ISV
red/yellow is dash temp gauage

all are interchangeable, but as a rule i tend to leave the ECU one alone for obvious reasons!!

if your dash temp gauge works then just swap it over with the ISV one and then test the ISV or dash temp gauge

just clean the spade connectors up, and make sure the connectors are tight, if the ISV loses the signal for a millisecond then it will stop working until the car is turned off then restarted

[Deefadog]

Thanks I'll check it out

[Deefadog]

Took a look today, got home late and it was dark but these three senders are they the single spade ones (one wire)?  Also there are three other connectors on plastic snap on casings with a few wires in them, ones blue, ones white and the other is brown I think what are these?

On the weekend I think i will take remove and clean all connections as some have alot of gunge on them!

[Gambit]

yes mate they are all single spade connectors

did you feel the ISV to see if it was buzzing with the ignition on?