Stand Alone Engine Management

[SRGUYINDAVIS]

Anyone on this board have experience with running a stand alone engine control system? I am thinking about going to one and was hoping to get some feedback and possible suggestions for which unit to go with.

Thanks,
Glen

 

[Ishodu]

Tweecer RT is the best way to go. Do some reading in this tuning section you will find lots of info about it.

 

[Racer X]

Isn't the TwEECer a piggyback mod for the EEC-IV?

The only standalone I have experience with is the SDS EM series. It's pretty flexible, and the learning curve isn't too steep; it's a good choice for someone who's a beginner.

 

[NotSoSlowSHO]

yes, the TWEECER is a "piggy-back" unit.

 

[ShoGuy93]

Kenny that thing looks better and better every day man!

 

[shoteen95]

Megasquirt It

It's controlling fuel and spark on my probe. Can be assembled by you, or bought pre-built.

Damned thing can be tuned to run anything.

http://msefi.com/

 

[SASHO91]

why cant we have that thing that DSM's have... the one were you plug into the Game Boy?!?!?!?!?!

dam it.... :laugh_ti:

 

[Axianator]

While the MegaSquirt standalone system is probably the best DIY solution available on the market, IMO it can't touch the military-grade EEC which is already installed and in use on your Ford vehicle. What's more is that, with the right access to the factory programming (which can be yours if you use a TwEECer), you can do as much (if not more) with your EEC than you ever could with a MegaSquirt.

 

[SASHO91]

military grade??? is that some type of tech talk you got going on Mr. Smarty Pants??!?! i mean Mr. Tweec-ster.....

 

[SRGUYINDAVIS]

The reason I am considering going to a stand alone is that I am tired of dealing with all of the sensor related codes that are happening in the car.

Shoteen95: Did you install your megasquirt yourself? If so, how long/hard was the process.

 

[mosho93]

My room-mate is in the process of building his megasquirt for his 81' 931 Turbo Porsche..... doesnt look TOO difficult, kind of intimidating but not terrible

 

[shoteen95]

The 'squirt in my car was already assembled when I bought it, but If you're an electronics wiz (or ****, just good at soldering) you could probably assemble a unit yourself. Or buy a prefabbed unit.

Definately check out the links I posted to see what all is involved, and it is...pretty involving.

P.S. A guy here in Michigan who is a MS guru had a bulk buy on probetalk a while ago. For a nice chunk of change, they would outfit a stock probe ECU with a MS, so while the stock computer controlled Idle, fans, and other smaller functions (which it does extremely good, even my probe doesnt start and idle the best...it's rather annoying on cold days) the MS controls Fuel and Spark.

I'd try contacting him on AIM (Ryanpzz), ask him what MS could do for a F/I SHO, and if he knows how complex/costly it would be.

 

[SRGUYINDAVIS]

I would probably buy a pre-bought one...did you install it yourself?

My only concern would be getting it to run ignition. I am not sure on what type of ignition system the SHO has and thus not sure how I would wire it in to the stand alone

 

[shoteen95]

I would probably buy a pre-bought one...did you install it yourself?

My only concern would be getting it to run ignition. I am not sure on what type of ignition system the SHO has and thus not sure how I would wire it in to the stand alone

Well, I would assume since the SHO has a distributorless ignition as is, all the MS would need to run the ignition would be the crank pos sensor signal, and you can use the existing coilpacks. I know that the V3 boards they were selling a while ago on PT didn't even need a crank sensor, just retained part of the stock distributor as it contained a sensor that could be utilized for a trigger. Perhaps you could eliminate the Crank sensor on the sho altogether and use the cam position sensor.

 

[NJSHO]

The reason I am considering going to a stand alone is that I am tired of dealing with all of the sensor related codes that are happening in the car.

Shoteen95: Did you install your megasquirt yourself? If so, how long/hard was the process.

Why not just fix the problem sensors which would be alot easier than learning a standalone. Even replacing all the sensors would probably take less time.

 

[Axianator]

Why not just fix the problem sensors which would be alot easier than learning a standalone. Even replacing all the sensors would probably take less time.

Agreed. If you are getting sensor codes, then your EEC is trying to tell you something. Attempting to work-around these codes by installing a separate standalone system is not the correct way to go about this.

Furthermore, your factory EEC is already capable of outperforming the MegaSquirt in it's current form, even with the aid of a TwEECer. Add a TwEECer or similar tuning device and you will have access to many different types of parameters - not just fuel and spark tables - along with the added benefit of a tried-and-true logic system already programmed by the factory engineers.

 

[SRGUYINDAVIS]

I can't seem to get rid of the codes: I have replaced all of the sensors, checked all of the wring and even replaced the EEC...I am just at my wits end...

 

[LOUDSHO92]

What are the codes?

 

[Jaz2099]

http://www.shoforum.com/showthread.php?p=540622#post540622

 

[UnderPSI]

MS is MAP, so you could do away with the MAF. Can a Tweecer add fuel according to boost levels?