jmauld

Got a few ECU related questions.

1. Does anyone know of the ECU compatibility between different models? ie. 1.6l vs. 1.8L vs. 2.0L vs. MP3 vs. Japanese versions.

2. Has anyone opened an ECU yet and looked to see what's inside?

3. If yes, do you mind providing the model numbers for the chips on the board?

4. If yes to 2, were any of the chips in a socket, instead of soldered on?

5. Are there any reputable companies that make a chip yet?

No, I haven't looked inside mine yet. It's cold and raining outside and I'm bored tonight.

Later
Jason

njaremka

mazda started providing thier cars with a non-programable chip in thier cars somewhere around 1996, i believe. so you will have a hard time finding a chip that will do any good if you have a car later than that, regardless what size engine you have. and different engines have different programs to optimize the power differently, so they are NOT interchangable.

jmauld

When you say "a custom setup burned for me", go into further detail about what they are actually doing? Are they doing a custom setup to the OEM hardware, or changing the hardware all together?

jmauld

Wonder if the PROM could be replaced with a compatible EEPROM, so that you can play around with the code?

Who is Davard and Joe Graves? Do they run a business? Would they share the information that they know about the chips?

benf000

JET - V-Force Power Control Module - w/o Turbo - 20mhz RISC microprocessor optimizes the ignition
spark advance and recalibrates the fuel map for optimum horsepower and acceleration.

has anyone tried this yet? its pretty cheap and a fast turnaround.

ben

jmauld

How do you know? Have you tried it? Has someone you know tried it? I'm not flaming you, I'm really curious.

There are examples of this working. The DOHC Neon ECU will work on the SOHC Neon and is an improvement.

A Eclipse ECU will work in my '89 Mirage turbo and is also an improvement.

These are ones that I know personally, I'm sure there are other examples.

Thanks, but that's not what I'm looking for. While I'm sure it's effective, it's still a bandaid and doesn't address the source of the problem. I use bandaid type products in other cars and they are annoying, and each one adds at least one more point of failure.

jmauld

What does the ECU measure during closed loop?

Is there a reason to not modify that signal? Again this is getting into "band-aid" territory, I'd rather attack the source instead of building around it. But I'm not going to invest in a stand alone system for a daily driver. :-)

benf000

well, i guess that kills that idea. i had called the place about getting it done and i know for some other cars they make a good remap with good performance.

but damn. mazda had to fu#$ us on this one.

so is it totally not worth it? the guy at the shop said that they remap it so that if you give them your performance mods, they could map the ecu to optimize and increase hp.

is this incorrect?

ben

jmauld

But it has to have a reference point to know where in this table it should be. It can't just blindly pull numbers out of a table. Right? In the eclipses, the ecu monitors airflow vs rpm as a reference point to know where to get the value from in the table. A common mod is to lie to the ECU about the amount of airflow, and tricking it to go to another point in the table. I know this isn't an eclipse but the systems have to work off of similar principals.

I'm not giving up on it! :-)

2.0 Probe

has anyone looked into Superchips for a custome reprogram. I know that on the 2.0 Probe it is possible and has some very good gains. But I have no idea about obII cars but it can't hurt to send them an email and see what they say.

jmauld

2.0L in a pro5.

MikeD

My girlfriend in Fla will be taking her car to Superchips shortly. They are going to see what they can do with the '00 1.8L ECU. I don't know any specifics or exact time-frame. We are seeing what they can do for FS-ZE swap guys. Other than that I know nothing esle about it at the time because we are the "middle-man" in this testing.

Just wanted to let you know that there are some ppl out there trying to get things done

Jeremy

jmauld

There are several guys on the DSM list who have found that the Superchip code is EXACTLY the same as the factory code. From what they say, they just pull the ECU apart and stick their part numbers on it and resale it.

2.0 Probe

well one of the guys I know swares by it. He is throwing down more torque after the superchips reprogram. He even got a custom jspec cam reprogram.

these are his numbers:

Power (bhp): 142.00


Torque (lb ft): 153.00


1/4 Mile (s): 15.60


0-60 mph (s): 7.10

jmauld

Okay, let me rephrase what they said about the chip.

They pulled the code off of the aftermarket ecu, pulled the code off of a stock ecu. Same CRC values were found in each and the got the same results when the programs were stuck into a code comparing program.

In other words, they were exactly the same. Many of the companies were found to be doing this.

Go to http://www.dsm.org and search for bogus ecu or click here: http://www.dsm.org/scripts/htsearch?...method=boolean

There's lots of information on the subject. And those guys know what they're talking about. DSM owners are the cheapest guys on the planet, (I know, I am one) they're not going to spend money on a product unless it does work.

Here's a trick for you. Do a dyno run with your car. Immediately after doing that run, unplug the ECU long enough for it to reset and then do another dyno run. You'll get different results, because the ECU hasn't had time to adjust it's values. That's why people notice a difference when installing a new ECU.

I'm not saying that they will pull this crap with the Protege's, I'm just saying that it's been done before, so why trust them?