BUG REPORT: you can no longer enter a temperature under 32 deg F for the air temperature sensor calibration. I will post this into the Haltech forum also. (The FCON air temp sensor has a calibration nearly identical to the stock sensor and it is a 1/8" NPT for those looking for a smaller alternative to the Haltech one).

 

Just to confirm re: previous posts, the AUX output on my unit with v1.06 works just fine. My multimeter reads 470 ohms when active and infinite resistance when inactive.

 

captj3, boost vs speed has worked for as long as I can remember for 350Zs. G35s did previously, then the speed channels were missed in an update, and now they are in there again.

rcdash, email sent to Haltech staff regarding 32degF minimum. Good catch. Also, thanks for confirming your output works as well.

 

rcdash, to follow up on minimum temperature:

"I am not sure how this came about, but it has been rectified in v1.07."

Estimated 1.07 release date is Friday, February 12th.

 

Thanks Hal! Luckily, it rarely gets below 32 degF here in NC (when I'm driving it anyway).

 

Anyone running the Haltec AIT sensor and a Cosworth Plenum?

Wanted to know if you had to tap it or do any of the openings in the rear of the Cosworth plenum support the size of the AIT sensor

 

I believe we used the small size sensor Haltech offers, threaded right into the front of the plenum (passenger side, front has a threaded provision - pics are on our blog)

 

What? Haltech offers a small AIT sensor? No way! Grrr... Why would they sell that clunky 3/8" one if they have a 1/8" npt available?

I had to purchase a FCON one, which works fine by the way... I searched the Internet for hours and it's the only readily available 1/8" npt sensor - and the calibration curve is almost identical to the stock MAF AIT sensor.

 

Glex, from memory... I believe the Cosworth has 1/8 and 1/4 npt openings. Haltech offers two air temp sensors, large (3/8npt) and small (14x1.5 thread), so neither of them will thread straight in. http://www.haltechparts.com/SearchRe...rch=ait+sensor

RCDash, Haltech does not offer 1/8npt, I wish they did. HKS does as you are aware, and this may be a good solution for you glex.

 

My thoughts on this sensor:

1. Expensive (twice Haltech, and a bit more $$$ for the required "mount")
2. Requires 1/8” NPT “mount”, which the sensor, which is even smaller, screws into. It has a probe that extends pretty far in though, which is nice – puts itself in the way of airflow.
3. It appears to be all metal. I don’t like this - heat in the plenum and engine bay may affect readings? I used lots of thread sealant between the mount and the plenum and between the sensor and the mount to try to insulate it a bit more. I also used shrink tubing around the outside portion to provide some heat insulation.
4. Despite the heat concern issues, it seems to respond quickly to temperature changes in the probe tip (holding sensor base in finger tips did not change resistance much, but blowing on tip had immediate impact as registered by multimeter).
5. Only available through HKS pro dealer (what is with HKS and all their security? Blah!)

 

^ Thanks for the info

Every time I look into doing something different for this car it seems I need to do 3 other mods just to support the first one

 

Any updates on the new software/firmware to fix the lower temp readings

 

Haltech Australia notified me that the release has been pushed to the 3rd.

 

So does the Haltech only work with VQ35 setups or does it function with older VQ30 engines as well? The crank and cam signals are different on VQ30s but they are simpler signals than the VQ35 engines have.

Also can you raise the rev limiter with this system? I'm assuming you can if you can write the proper ignition and fuel maps past the factory rev limit fuel cut.

This looks like a better option for what I want for my engine tuning needs.

 

The Haltech 350Z ems is setup for the 350Z trigger pattern and is not enduser-adjustable. Do you know what the pattern is on the VQ30 or have a picture of the trigger wheels (cam and crank)?

The Haltech 350Z ems has a user adjustable rev limiter and will go as high as you like - but, 04.5+ 350Z's close the throttle plate at stock redline and require a reflash to rev higher.

 

any news about the HR harness? I've read the whole thread & seen the requests earlier in the thread but haven't seen anyone ask about this for a while now...

 

While the HR is not a Haltech-supported engine, we have installed a large number of them at this time and have helped others as well. It can be installed one of two ways:
1. We (Injected Perf) have a plug & play harness available at an additional cost.
2. Wire into your oem harness. If purchased from us, we will provide a base map and wiring instructions.

 

ok great. I'm doing a HR swap into a DE car & I will initially attempt to run the engine on the HR ecu. if all can communication issues can be resolved & I can get it to all play nicely then I'll be looking for the HR harness, if not I will fall back on running it off the DE ecu & winding up rewiring it all up anyway, was just curious as to what my options were there, & yeah, the haltech at least is def coming from you

 

so just testing the Haltech before my startup and I have a couple questions.

IS analog voltage input 6 and 8, the actual voltages read by the Haltech for the widebands?

If so, they do not match the voltages read by my mulitmeter. The haltech says they are 4.4x while my Fluke says its a solid 4.54

Granted the car is off, but if teh Haltech is seeing that much less voltage, thats going to greatly effect my AEM wideband curve.

Also, if i just put the car to ACC and not ON, my meth pump comes on. That means that the haltech must be grounding the line out. Once I put the car to ON, the meth pump turns off.

Ever see that before?

 

str8dum1 not sure if it is related but could the difference in voltage be realated to not having a ground reference? Have a look at this for info which explains what i'm trying to get at.

http://wbo2.com/sw/wblinout.htm