R33 Sounds Like A Boxer...

[LANDSCRIBBLE]

thanks, thats what i was thinking. ive never heard of rb25's having air intake temp sensors.. the only non standard things i have is obviously the MAP sensor tapped into my cross over pipe just before the throttle body, a water temp sensor in the upper hose, and an oil temp sensor on the oil filter relocator

so the ecu is fretting over a non-existant sensor for some reason?

[GTSBoy]

Map sensor should NOT be tapped into the crossover pipe. There's a reason that they call it a MAP sensor. The M stands for manifold. It must be downstream of the throttle butterfly.

Now, here's the thing. Map sensors are normally connected via a hose. Is the device on your crossover pipe your temp sensor?

[LANDSCRIBBLE]

Ok so the one thats tapped into the crossover is a 2 wire cable that plugs onto the sensor. And yep theres a hose running from the plenum into the passenger side footwell. So, if it is an IAT sensor and its connected, why would it be getting high value error?

[GTSBoy]

Borked? Take it out, cool it down and measure its resistance. Heat it up and measure again. Check against tech data.

[LANDSCRIBBLE]

Ok thanks ill give that a try. Do you think the ecu would throw the tune out that much for it to drop a cylinder or over fuel as much as it is?

[GTSBoy]

Probably shouldn't. If it was water temp you'd expect something. It is not out of the bounds of possibility for the tuner to have put a severe cool down function into it though.

I'd be looking for a broken wire if I were you (assuming the sensor itself seems to function).

[LANDSCRIBBLE]

Hmm ok i might give the tuner a call then , thanks.