Toyota Engine advice required NLC

[Chris G]

Ladies/Gents,

Looking for some advice on a Toyota Engine....... my dear mother (bless her soul) has just purchased a 2006 Toyota Corrola 1.6 with the 3ZZ petrol engine installed.

Problem that is being encountered is that on start up the idle sits at approx 1500rpm for approx 3 mins until the engine is heated. Doesn't matter if I drive straight off or let it warm up on the drive. This in itself is not a major issue as it soon settles back down to what I consider as being a normal idel speed. The bottom line is it is pi$$ing me off and I do not think it should be idling at this speed on start-up!

I know there are various sensors around the 2ZZ engine thats fitted to my Exige - can anyone suggest what checks I should be making on mother gooses car? Checks I was thinking about included:

idle air control valve
MAF sensor
crankshaft sensor
throttle position sensor
I am pretty sure it has a bosch fuel injection system - which will be electronically controlled and not adjustable (by me). This is not something I can check but is it worth getting the diagnostic plugged in?

Any suggestions appreciated or if anyone has had similar problems on their Toyota engined lotus cars?

Cheers

Chris

[robin]

Get an OBDII live data reader on it and find out what the engine is up to ... much easier than swapping sensors about.

Cheers,
Robin