Technical Erratic tick over

[deltadeano]

Hello people's quick question.
When my Uno turbo mk2 has warm up it has an erratic tick over from 900 up to 1500 constantly when stopped at light and so on. Checked pipes and can't find anything any ideas what it could be so I know what to check next. Thanks for any help. Deano.

 

[oxide hunter]

compleate guess but could it be a tappet?

 

[deltadeano]

compleate guess but could it be a tappet?

What makes you think that. I have just had my cylinder head done and it is tappety. I have just reset the mixture just need to get it out and give it a good blast.

 

[oxide hunter]

ah sorry miss read your first post. ignore that.

give you two guesses this time...
A, an air leak (is a big system so not impossable)
B, an airflow meter which is dieing. try getting a volt meter on it and looking for erratic signal readings...

 

[deltadeano]

I have two spare airflow meters i have checked for air leaks seems ok. Im going to inquire today to get a rolling road setup may be they might find something (fingers crossed) Thanks for your replies buddy.

 

[oxide hunter]

my plesure.
hope you get it sorted, good luck