Idle Issues

[Parm_93]

Hi guys,

 

So having a few idle issues lately. Originally car was NA, recently have done a TT swap from a MK1 Aristo. The engine was running fine while in the Aristo with no idle problems.

 

I'm getting a low idle (~400RPM) when it's warm, and when it's cold, it wants to stall straight away, so I have to keep my foot on the throttle a little bit until it warms up. Even then when it's warm and I blip the throttle, it will drop down to about 200RPM, close to stall, and come back up.

 

Now I know it should sit at around 1500RPM when it's warming up, and then drop down gradually like my other Supra.. I'm not getting this.

 

Originally I thought the problem was the IAVC being seized, so I brought a replacement from Paul and cleaned it up before installing. At first it seemed be fine after replacement, now a day later, it's doing the same thing.

 

Could this be a TPS problem? Vacuum lines on the turbo side were all replaced when I did the swap too. Any help guys would be much appreciated.

 

Parm

[Sheefa]

Have you checked the coil pack connecting clips mate? That was causing my odd lumpy idle which would often stall. It was only a single clip and a simple few quid fix. They get brittle over time and disintegrate.

 

 

[Parm_93]

Have you checked the coil pack connecting clips mate? That was causing my odd lumpy idle which would often stall. It was only a single clip and a simple few quid fix. They get brittle over time and disintegrate.

 

/QUOTE]

 

They were all replaced too when I swapped the engine, most of them had snapped.

 

Problem seems to be solved now anyway thank god. Turns out the ECU was faulty!