Dsmlink and 97 automatic gsx

[Bender]

First off, I tried searching on multiple sites, but couldn't find quite what I was looking for.

• Would an ecu from a 5 speed work with my automatic?
• What is the deal with switching my spark plug wires?
• If I use an electronic boost solenoid (perrin or aem) would it control my boost?
• Can it control the start point of methanol injection? (where to start progressive, or where to active on normal injection)

Thanks.

 

[N1te]

First off, I tried searching on multiple sites, but couldn't find quite what I was looking for.

• Would an ecu from a 5 speed work with my automatic? No.
• What is the deal with switching my spark plug wires? Less resistance.
• If I use an electronic boost solenoid (perrin or aem) would it control my boost? I think, wait for another answer.
• Can it control the start point of methanol injection? (where to start progressive, or where to active on normal injection) I have no clue.

 

[2gGSX]

First off, I tried searching on multiple sites, but couldn't find quite what I was looking for.

• Would an ecu from a 5 speed work with my automatic?
  Someone else will have to take this one.
• What is the deal with switching my spark plug wires?
  It is necessary since the 97 and up firing order is reversed from the what the 95 EPROM ECU recognizes.
• If I use an electronic boost solenoid (perrin or aem) would it control my boost?
  Not at this time.
• Can it control the start point of methanol injection? (where to start progressive, or where to active on normal injection)
  Yes, although the only modifiable parameters would be a RPM range (like a window switch), TPS threshold, speed threshold, and knock threshold.

Thanks.

See quote.

 

[Bender]

yea i understand about the difference about the 95, but do all I have to do is swap plugs 1 & 2, 3 & 4; and then switch the cas in dsm link? Do I have to switch a wire going to the Ecu?

 

[zippyshoe]

Would an ecu from a 5 speed work with my automatic?

Yes, in the case of 2g's, an ECU from a 5 speed will work just fine in an automatic. I have been using DSMLink for the past year or so on my '96 automatic. There is a separate control unit for the automatic transmission (the TCU). This does not hold true for 1g's - one reason is that 1g manual and 1g automatics have different injector sizes (390cc vs. 450cc).

 

[nc90awd]

You can leave the sparkplug wires the same and invert cas

 

[2gGSX]

You can leave the sparkplug wires the same and invert cas

He has a 97. He must do both.

yea i understand about the difference about the 95, but do all I have to do is swap plugs 1 & 2, 3 & 4; and then switch the cas in dsm link? Do I have to switch a wire going to the Ecu?

You only swap one set of wires. Mine are 2/3, 1/4. You don't have to switch anything on the ECU.

 

[Bender]

I'm aware of the tcu, I was just curious on whether the ecu's had some fuel corrections for shifting. 2gGSX, what do you mean only swap one set of wires?

 

[2gGSX]

I just realized I didn't think that one through very well

1G DSMLink, nothing. For the 2G guys, the '95-'96 style Cam Angle Sensor (CAS) sends out a signal that's electrically "inverted" from other DSM cam sensors (1G or '97+ style). When you put a '95 ECU into a car with a non-95 CAS, the ECU ends up swapping the firing order of the injectors. In most cases, this produces very little noticeable difference in drive quality. But we offer the option to invert the CAS signal anyway just in case. You can selectively invert this signal with the DSMLink software as you wish. You will still need to swap your spark wires, though. We can't control spark firing order in the EPROM at crank time. So even with CAS inversion, you still have to swap plug wire 1 with 2 and 3 with 4.

It's as you said originally.

 

[zippyshoe]

I'm aware of the tcu, I was just curious on whether the ecu's had some fuel corrections for shifting. 2gGSX, what do you mean only swap one set of wires?

I recall spending quite some time researching the '95 model-year ECU's before purchasing DSMLink for my automatic. If I remember correctly, the Mitsubishi part number for the ECU installed in the AWD automatic was identical to that installed in the AWD manual. I believe this is also the case for the FWD auto and FWD manual. There is a minor difference between the AWD ECU and the FWD ECU: The FWD ECU contains a 130-mph speed limiter, while the AWD ECU does not contain this limiter. In either case, DSMLink eliminates this speed limiter anyway. The reason for this limiter was because the FWD vehicles came with H-rated tires, while the AWD vehicles came with Z-rated tires.

 

[Bender]

With all the settings that you tell them to burn on the chip, (injectors size, launcher rpm, etc.) can that be changed with the dsmlink program? Or do I need to have the chip re-burned?

For example, I have PTE 880 injectors now, but I'm planning on getting 1,000. Can I tell them to burn it for 880's, then just change it in the program when I upgrade to 1,000's? Also, when I have the chip burned for the injectors I have, do I still adjust the global setting on the program? Or does the chip pre-set the parameters for 880's when the global is at 0%?

 

[2gGSX]

The settings the chip is burned for are the defaults that your car will run. Every variable can still be changed via the program. The reason they ask you to specify these defaults is that the 2g DSMLink does not have a method (currently) to save your settings when the ECU loses power and resets itself. You tell them your settings so that you can still drive the car in the event you do manage to lose power.

If you are FOR SURE upgrading to the 1000cc injectors soon, then I would tell them that ahead of time and let them burn it to the 1000's. If you install DSMLink while you still have the 880cc injectors, then manually adjust the global fuel settings to match your 880's. My reasoning is that if you know you will have the other injectors, it makes more sense to have your fail-safe corresponding to those.