IAT & MAP sensor locations for Zeitronix

[K Simmonds]

I'm in the process of wiring up my Zeitronix ZT II unit/LCD display, I have IAT, EGT, WB Lambda and MAP sensors for it. I've welded in bosses for the EGT and WB lambda at the turbo exit and bottom of the downpipe respectivly which seems to be the most sensible locations for these Two. My intuition tells me to fit both IAT and MAP sensors after the throttle body in the inlet manifold, which I don't mind doing. However is any reason not to weld in bosses for them in the metal boost pipe just before the throttle body?

[prj]

No need to fit IAT sensor, motronic already has one, and you can log it from there.
Same with the MAP sensor, you can use motronic's output with a resistor.

That said, you can put a T piece to the ECU pressure feed and stick the MAP sensor there.

[Sonic]

No need to fit IAT sensor, motronic already has one, and you can log it from there.
Same with the MAP sensor, you can use motronic's output with a resistor.

That said, you can put a T piece to the ECU pressure feed and stick the MAP sensor there.

This is what i'll be doing with mine.

[mcandmar]

Where did you guys place the WB02 sensor, just before the downpipe to cat flange?

[prj]

Just put it in stock hole and use the narrowband output for motronic.
There is absolutely no point to run two sensors.

[K Simmonds]

Thanks for the input Prj

I'm a bit concerned that the stock location is a little close to the turbo for the WB lambda heat wise, hence sticking it at the base of the down pipe. Theres plenty of cable with it so figured better to be safe than sorry. The info with it says to put it more than 16" from the turbo and upright between 10 and 2.00 oclock .I'm going to use the NB emulation, as Prj says theres no point running the two sensors for the sake of it.

I bought my unit second hand and it came with the Four sensors so I thought I may as well use them all. I'll use a T-peice for the MAP as that makes sense, hadn't thought of that. Think I'll weld a bose in the metal pipe boost for IAT as it would be nice to be able to monitor it on the LCD and I have the sensor to hand.

[mcandmar]

I read the narrow band output isnt as responsive as a true narrow band O2 sensor so ideally run both. Not sure if there is any truth in that?

As for location, the document in this thread http://www.s2forum.com/forum/showthread.php?t=33753 implys its better to move the WB02 sensor away from the turbo due to heat.

[prj]

1. The output is not less responsive unless you are using a bad controller.
2. I have been running the WBO2 for over a year in stock location and it's IP shows that it is still like new, so I call shenanigans.

[K Simmonds]

1. The output is not less responsive unless you are using a bad controller.
2. I have been running the WBO2 for over a year in stock location and it's IP shows that it is still like new, so I call shenanigans.

Fair play, if it's still in tip top condition after a year then it's most likely to be OK in the stock location.