Idle problems when cold


I'm not saying it is your sensor but its cheap and you can cross it of your list if problem is still present.
Did you clean all your earths ?
Give em a little rub of sand paper and check the ones
At thermostat
 
Is your timing set to 16deg? And car idils at 750rpm +or-50 rpm?
When up the proper themps
 
No ill try sensor and earth's so I've only tried cleaning iacv and checked vacum lines so far. Car idles around 5 to 6 hundred when ya start it. Once it heats up to normal running temperature it idels around 750 to 800 mark pal
 
b16 mini said:
I had a problem with my car the last time I drove it, it was cutting out like others have described,

After stripping some other bits off to do various other jobs I noticed the screw had fallen out of the valve on the feed end of the fuel rail (see picture below) and was just sitting in the white cap,
I'm not sure if this would of cured my issue as I've not started it since, but I'd say it was likely to be connected to the issue.
Click to expand...
My screw is also missing, I just noticed! But it's not causing any problems
 
Make sure you ask for the ect sensor the one at corner near front of block !
 
Top one is it pal.....ye I think we do alry
 

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Grand I'll try that so if that doesn't work and the earths are OK any other ideas or would that be it
 
I'd take out iacv and leave it soke in carb cleaner for as long as you can all the while giving it a good work out in the carb cleaner, pushing the plunger back and forth and clean the mesh ,
After I'd do the idil Relearn procedure,
What your car is it?
Do you have a fitv on TB ?
 
OK ill try cleaning it again. Ye is that we're you reset ecu and let it try and learn how to idel again ye? It's a 00 pal
 
Yeah m8 but do as said and go from there.
Do not put it back on wet (iacv)
 
I think your iacv is stuck closed. Either because of crap got into the mechanism or the motor than turns it is duff.
You need to find someone with a working iacv that oi can borrow for the sake of testing it.
Will save you time and money replacing parts you don't need too.
 
His iacv seems to work when car is up to temps ?
Which is strange.
 
Ye I'm definitely going to try changing the iavc I have a sir civic in she'd so I'll take it of that ye like o said idels barely over 500 until heats up then it idels were it should around 7 to 8 hundred rpm
 
Unless my understanding is wrong then if it's stuck shut then it's only going to effect cold idle. Seen as the water temp rises the motor closes the valve in the iacv.
Played with these on an ep3, the valve was getting stuck on one valve and the motor was duff on another.
So trying a spare iacv caused the same symptoms. Because both where broke.
Stripped both down and swapped the motor over to the working valve and it's been right as rain ever since.
 
Did we check spark plug heat range aswell? I ran 8s in an n/a b18 before and it didn't like a cold start.
 
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