- 14,378
- Wellington
Over the weekend my dad and I pulled the throttle body off the Corolla and cleaned both that and the IAC valve. After a quarter of a million kilometres travelled, it was showing it.
While there we also tweaked the idle so once warm, it would sit at around 700 RPM.
While originally this was taken off due to concern of it's suspected fast idle at cold temps - where it would sit at around 1600 - 1700 RPM, on later discovery I have since found out it is perfectly normal for the 1ZZ-FE to do this for the catalytic converter to warm up quickly. I'm not too worried as looking at the state of it, it needed doing anyway, and there's not really any downside to doing so!
Update on the SVX: It is now put back together and in good shape, with the air conditioning being regassed last weekend as well. Shortly after it being fully assembled, a non-damaged replacement cambelt cover finally arrived from Maryland after two were broken due to bad storage in their dealership. Since it requires retiming the engine and removing a lot of parts, we've decided to leave the repaired one on as it's not exactly noticeable anyway.
While there we also tweaked the idle so once warm, it would sit at around 700 RPM.
While originally this was taken off due to concern of it's suspected fast idle at cold temps - where it would sit at around 1600 - 1700 RPM, on later discovery I have since found out it is perfectly normal for the 1ZZ-FE to do this for the catalytic converter to warm up quickly. I'm not too worried as looking at the state of it, it needed doing anyway, and there's not really any downside to doing so!
Update on the SVX: It is now put back together and in good shape, with the air conditioning being regassed last weekend as well. Shortly after it being fully assembled, a non-damaged replacement cambelt cover finally arrived from Maryland after two were broken due to bad storage in their dealership. Since it requires retiming the engine and removing a lot of parts, we've decided to leave the repaired one on as it's not exactly noticeable anyway.