Warm start problem

vx-chris

ok guys, not a 2.2 but still vaux non the less lol

Z20LER engine starts fine and first time when its cool but when it's warm it can take 10 minutes of trying to get it to fire up.

No fault codes either by the way.

It's starting to really get on my tits now and was only intermittent but since the warm weather has come it's just getting worse.

Any ideas on what it could be as I don't want to be throwing money at that's not needed. Tbh I do have a feeling it could be the crankshaft sensor but I would have thought that would have brought a code up :banghead:

Cheers

figo126

did have same problem started from cold drove 2 mile , stopped to get papers to read at work ,stood for 3-5 minutes while in shop came out turned over without starting ,left for 5-10 minutes . boom started ,,,,, crank sensor, while it was running it was fine , if I turned it off for a minute - 10 minutes just turned over with no fault codes ,,,,,,,,,

vx-chris

Thanks mate, just as I thought then. Mine isn't as bad as that and only really does it when left in the sun. If it's in the shade it's ok(ish lol)

Now next question is would an aftermarket suffice or genuine? It's just from my understanding it's a non stock item at the dealers ffs.

figo126

genuine mate all the time ,🙂

vx-chris

Well thats a bugger with me going away next week lol.

figo126

try autovaux wakefield ,,,,, genuine vx , mine started being not so bad then got worse,,,,

vx-chris

Well managed to get hold of a dealer with it in stock but it's a 40 mile round trip (either that or wait as my local dealer can't get it in till Tuesday which is a no go with me being away lol)

Going to be £40 lighter in the pocket but it's better then it would be if I couldn't get it on trade club. I've also got a £15 voucher from the service club so I'm hoping they accept that as well

vx-chris

Just to update.....

What a ball ache that was lol. But sensor now changed and started up first time so i have broke anything lol. Time will tell if it cures the problem so ill update on that in due course.

This is a pic of the old one that was all oilled up and the exposed part of the magnet (i presume thats what it is) was brown with marks in it, where as the new one was silver and smooth

trisha

I see the problem was in crank sensor. bu can you tell me idle was? is it ok smooth or uneven sputtering (something like this)

trisha

vocky

usually poor tickover is the egr valve or a dirty throttle body (y)

trisha

my egr is blanked.
but i have this symptoms:

https://www.youtube.com/watch?v=hihiiXzNQxw

https://www.youtube.com/watch?v=mK-ZX8yKa2s

https://www.youtube.com/watch?v=Rcq0R1M45II

something is wrong but I can find what.

vx-chris

@[deleted]
Sorry ive only just seen your question. Idle was fine once it managed to start

daddy_cool

glad u got sorted..

trisha

vx-chris said:
@[deleted]
Sorry ive only just seen your question. Idle was fine once it managed to start

was your starting problem similar as mine in the video?

vx-chris

trisha said:
was your starting problem similar as mine in the video?

From what I remember, no it wasnt like yours. Your car seems to fire up, but is running bad. Have you had the timing checked?

trisha

yes i have checked timing, its ok and chain is in good condition.
my warm start problem appears if i let car to stay for 1h

vx-chris

You could try the crank sensor if it only does it when warm and take it from there. Thats a risk you need to decide on if you want to spend the money on a new one and it doesn't fix the problem. I wasnt 100% my problem was that sensor but i took a pun and a lot of swearing and cut hands later (its behind the turbo on mine as i have the z20ler engine and not the z22se engine)