Poor idle

[nickashton]

Good evening all. I am turning to you all for some desperately needed help with regard to poor idle on my k series elise s2. The engine hovers around 900 rpm for a while then momentarily dips before settling back to 900 rpm. So far I have replaced the throttle body,TPS, IACV (stepper motor) all to no avail. I've read various posts regarding a similar issue,  just wondering what to do now to finally resolve it. Cheers. Nick

[Martin R]

A fair chance its a slight air leak on the inlet side of the engine. Google is your friend and you tube. a lot of people use carb cleaner and spray it around the inlet plenum etc. HTH

[nickashton]

Thanks Martin. Ill give that a go this week.