10-02-2007, 04:59 AM
Join Date: Jun 2006
Total Cats: 42
IAT sensor problem?
I think I have an issue with my IAT sensor I plugged the laptop in on the way to work this morning as the previous day my car didnít feel as quick, and as the weather is turning I wanted to tune in the cold start enrichments a bit more.
My commute to work is predominantly motorways and with a supercharger and an A/W intercooler the IAT temps would normally rise when at WOT, and then slowly tail off when cruising. After a good 30 mile run the temps would settle around 30degC.
This morning however I noticed that after 2 miles of driving my IATís had reached 40DegC and were slowly yet steadily increasing. I stopped as soon as I could and checked the A/W Intercooler and pump, the cooler was ice cold and the pump was working fine. At this time my IATís shouldíve been at around 15DegC max.
I carried on my journey and the temps slowly kept rising to the point that when I arrived in work MegaTune was displaying temps of 50DecC. At these temps the A/W cooler would be very hot to the touch, yet it was cold.
Iím currently at work and wonít have much daylight when I get home, what things should I check to get the IAT working properly?
Iíve got a spare sensor so Iíll try swopping them out in-case itís failed. I quickly checked the plug and that looked okay Ė no dropped pins?
What else can I check for?
MSnS1 V3 029y, ignition and injection control.