my freind has a 93 z , the car runs ( could run better) his only mods are mac headers, cai, hypertech stage 2 chip, when we scan the car ( scanner from jegs,actron)the air intake temp reading starts off normal(just after starting the car) at whatever the outside temp is, or close to it, then it keeps going up , does not matter if you sit still w/car at idle , or drive down the road? also the fuel trim BLM's are at 108 , anybody had this before or any ideas to the cause of this? has not set off any codes, we replaced the ait sens w/new still the same

 

If you BLM's are at 108, they're pegged on the rich side and your part throttle performance and fuel mileage is going to suffer. Not sure if your AIT is affecting your BLMs. I see Tunercat in your signature; does that mean you tuned it yourself?

As far as the IAT readings I'd double check the wiring but definitely wierd if the temp starts out normal.

 

Sounds like a datalogging definition error. I see it all the time

The IAT can only read up to 160F which is about 7Xish in celcius.

 

no it's not my car it is a freinds 93 z and I have not tuned it. was thinking that his scanner was wrong ,or it was the hypertech chip he has in it, if it is a datalogging error what and how should we do about it? and we have checked the wiring to the ait sensor

 

Use a better datalogger Its not the tune..

TTS datamaster, Tech 1 & 2, are my favorites for OBD1 cars. HP tuners has a awesome scanner for obd2 (off topic)

 

Let me go on to say that the computer doesn't suppport anything higher than 160ish F.. so no matter what type of failure wiring or sensor.. you cannot report that high of IAT

 

will the ait sensor have an effect on the BLM's being 108

 

It may be true that the computer won't do anything above 160F, but I've seen my Scanmaster display an IAT of 212F.