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Where do you install the hypertech thermomaster computer chip at and how hard is it to do?Im assuming it's pretty easy. Also how much does it actually help? Does anybody have one of their car? I just got a PowerStat and low temp fan switch. Does that mean i have to wait to get a computer chip before i put them on?

So im assuming nobody has one on their car?

I would assume it probably has a connector on the Hypertech to install your old chip so you retain the cold start and limp home modes. If this is the case it should be pretty easy to install. You basically would have to remove the center console to get to the ECM box and then there is a door on the case you would remove to get access to the ECM. You pop the clips holding the chip in and remove it and then you would probably have to remove the big plastic top on your old chip and hook it up to the connector on the Hypertech. Then you would re install the whole thing back into the ECM housing and you should be set. The longest part will probably be removing the center console to get access to the ECM.

Now, this is me talking completley out of my a$$ since I've never actually seen a Hypertech chip, but if it's anything like other chips I've seen it should install the same way. I would actually be very supprised if it's not installed exactly like I said. I'm almost certain it would be done exactly like this: http://www.moates.net/documentation.php?documentation_id=9
If I'm wrong someone please correct me! I really don't want to be giving bad information

You should also be able to install both the low temp switch and the powerstat without the chip, 865spd. Supposedly it's all supposed to work better together if you get the chip that's programmed to work with them though, but it won't hurt to run them without the chip.

-Randy

If you take my advice right now, it'll be the best thing you ever did for your Fiero.

The Hypertech ThermoMaster chip is completely worthless. Hypertech doesn't make crappy products... however, there's nothing really TO DO on your motor to improve the power. Anything that it could do, you can do better, and manually. The only thing the Hypertech chip does is try to advance timing ever so slightly. You can do this yourself by adjusting the distributor while going with a slightly higher octane fuel. If you want instructions on how to increase horsepower by advancing your timing with the distributor and higher octane fuel, let me know. I'll type it out.

The Hypertech Chip however is totally worthless. I have owned that exact chip. I paid $174 dollars for it... it was one of the first modifications that I ever did to my car. I later sold it for $100, wishing I had never bought it.

It does nothing.

Anyone that says they felt a difference, merely felt difference because your car always performs SLIGHTLY better when you reset the ECM (which is what happens when you do this).

But to answer your question, the computer is located between the seats. The glove box comes out.

You first must removed the shifter surroung. There will be two 7mm screws holding down the arm rest / glove box assembly. Unscrew those. Next, open your glove box door and look behind it. You will see two more 7m screws. Remove those.

Next, remove the cigarette lighter plate, and unscrew the cigarette lighter from the plate.

You can now remove the arm-rest / center console.

You'll see a great big silver box on the firewall (or a black box if it's been replaced).

There is a little access panel which is held on by TWO 6mm sheet metal screws.

Remove these...

You will then need to pry the panel off slightly with a thin flat-head screw driver.

You will then see the chip.

The Hypertech ThermoMaster directly replaces your existing ECM chip.

You will not lose the LIMP mode when you replace it as that is also stored in a seperate chip on the motherboard.

You will want to pry the chip off using either a chip puller, or carefully by using a flat head on either side. Do one side at a time, but work it out slowly (you don't want to damage the pins).

The Hypertech Chip simply snaps in place.

Oh yeah, you MUST disconnect the battery first.. I forgot to mention that.

Make sure you keep the original chip, because within 6 months to a year, you'll be selling the Hypertech Chip to some other schmo on eBay and you'll want your old chip to be able to re-install.

That's it. You can expect no horsepower increase, and a lighter wallet!!

However, I do recommend going with a 180 degree thermostat (160 degree is FAR too low).

And the Hypertech Low-Temp Fan Switch... that's a very good item to have.

------------------
Todd,
2002 Ford Crown Victoria LX
1997 Pontiac Grand Am GT
1987 Pontiac Fiero SE / V6 5-Speed
1987 Pontiac Fiero SE / V6 (3.2L) Auto
1984 Pontiac Fiero 2m4 SE
1981 Pontiac TransAm (sbc 350)
1973 Volkswagen Type-2 Transporter

The Hypertech chip is a complete replacement for your stock chip. Pull the stock out, put the new in. From what I understand, it advances the timing, and you need to use premium gas to prevent detonation. Some chips require a low temp thermostat and fan switch.

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- Matthew

Black, Wingless '87 GT

quote Originally posted by 82-T/A [At Work]: If you take my advice right now, it'll be the best thing you ever did for your Fiero. The Hypertech ThermoMaster chip is completely worthless. The Hypertech Chip however is totally worthless. I have owned that exact chip. I paid $174 dollars for it... it was one of the first modifications that I ever did to my car. I later sold it for $100, wishing I had never bought it. It does nothing.

I also bought one, a lower temp thermostat, and a lower temp fan switch.
Took them off within the hour.
Don't do it.

I've already got a low temp fan switch and thermostat. I only did this because it kept getting real hot on me and it's still winter so i don't want to see what it'll do in the summer. But as for the Chip, i guess i won't get it, it is kinda pricy.

It's in the intake manifold on the thermostat end, center one in this picture:

JazzMan

Thanks Jazzman i'll see if i can find it.

quote Originally posted by 865spd: Alright i found it but on the instalation intructions it says to drain the coolent. Is this Really nessecary? It looks like i wouldn't need to and it's just a precaution thing.

No need to drain if the systems cool.
Use a 13/16" spark plug socket to make life easy.
And sometimes it helps to pull that big black pipe/hose off the upper plenum to move it a bit to the side.

thanks i'll try that when i get back from work today.

Sometimes a new connector is provided if the connector configuration on the replacement part is different than the original part. There's only one wire to the fan switch on the V6 engines and the late L4 engines.

JazzMan

Another thing with those Hyper chips, since they lean out the mix around 4k to make up for the stock manifolds lac of good CFM, depending on your injectors, you don't want to use one with a turbo as it may blow a head gasket or worse.