MicroSquit Conversion, Giving this a try Options

[Mblizzard]

So but sure! Got done with the bench testing and strarted the install.

Removed old FI stuff. Installed air temperature sensor.



Got the new throttle body installed.



Not there yet. But will keep working. Also decided to add Bluetooth to the system so that I can run EFI Analytics Shadow Dash.

[Mblizzard]

Got the Bluetooth connection working with Shadowdash. Using cheap $90 Android tablet with EFI Bluetooth connector. Flawless so far.

[Mblizzard]

Oh yea got new high impeadance injectors in today. Injectors, new seals, and connectors $75 each. Not too bad.

[VaccaRabite]

Got the Bluetooth connection working with Shadowdash. Using cheap $90 Android tablet with EFI Bluetooth connector. Flawless so far.

What bluetooth connector did you use?
How are you powering it?

Pics please!
Zach

[Mblizzard]

Got the Bluetooth connection working with Shadowdash. Using cheap $90 Android tablet with EFI Bluetooth connector. Flawless so far.

What bluetooth connector did you use?
How are you powering it?

Pics please!
Zach

Using the EFI Battery Powered RS232 Bluetooth Adapter (MicroSquirt). It has a battery option and can be run on standard 5V from a mini USB connector or its internal battery.



Planning on adding a cheap USB voltage converter and hardwiring it to switched power.



Has switch to let it run on battery or external power. Pretty neat since the Microsquirt does not provide power.

[DRPHIL914]

Mike,

id be curious to see what the whole process of conversion ends up costing. I know you are doingmost of this work. With all the issues we have with maintaining out d-jet systems due to MPS issues etc, I'm surprised no one has ever put together a plug and play system, ecu with harness, connectors to the relay board etc. (IMG:style_emoticons/default/confused24.gif)

[Mblizzard]

Mike,

id be curious to see what the whole process of conversion ends up costing. I know you are doing most of this work. With all the issues we have with maintaining out d-jet systems due to MPS issues etc, I'm surprised no one has ever put together a plug and play system, ecu with harness, connectors to the relay board etc. (IMG:style_emoticons/default/confused24.gif)

I believe McMark of Original Customs has the closest set up that is out there. I am not sure if the ECU is already programed or not on his version.

But I think a Fuel only options that works could be purchased as well.

Before I let things get away from me I had everything ready to go for just over $650. This used a number of the stock components like injectors, CHT, AAR, and other things I cant remember.

After the $650, new injectors, Bluetooth, Android tablet, GPS, modern idle air control valve, and such pushed it to $1000 range. But these are toys not a must for the conversion.

I don't have it running yet but with the Auto Tune feature of Tuner Studio I am hopping I don't have to spend too much time programing settings

[DRPHIL914]

cool, thanks for info- looking forward to seeing this in September- I have an occasional buck I cant explain that comes when driving only , not under heavy load , usually cruising or slight acceleration- not the same as one I had due to the tps before I replaced it.- and it bugs me enough that I will try one or two more thinks before deciding to go this route myself, so that's why I ask, trying to get an idea for what I would be into if I went this route too. I do have a local shop, Bob Woodman tires that has lots of experience with these in the 911 community so if I need help I know its available but im a glutton for punishment and would attempt to do it myself first

[ChrisFoley]

I have an occasional buck I cant explain that comes when driving only , not under heavy load , usually cruising or slight acceleration-

Slightly too lean will do this. A small adjustment to the MPS to richen the mixture might eliminate your light throttle hesitation.

[Mblizzard]

I have an occasional buck I cant explain that comes when driving only , not under heavy load , usually cruising or slight acceleration-

Slightly too lean will do this. A small adjustment to the MPS to richen the mixture might eliminate your light throttle hesitation.

If you don't have an AFR gauge installed yet that can help confirm what Chris was saying.

I had that for a while and eventually was able to get it smoothed out. But as I adjusted fro one thing it always seemed that something else got out of whack so I decided to quit chasing.

[Mblizzard]

Slow,but just a little bit each day. New high impeadance injectors prepped for install.

[Montreal914]

I like it! (IMG:style_emoticons/default/beer.gif) (IMG:style_emoticons/default/popcorn[1].gif)

[Mblizzard]

VW Passat idle air control valve for cold starts. Hopefully better than the 40 year old Auxiliary air valve. At this one can be controlled.

[DRPHIL914]

VW Passat idle air control valve for cold starts. Hopefully better than the 40 year old Auxiliary air valve. At this one can be controlled.

interesting!, I have not seen this discussed before- could this be used with a d-jet application as well??

[DRPHIL914]

I have an occasional buck I cant explain that comes when driving only , not under heavy load , usually cruising or slight acceleration-

Slightly too lean will do this. A small adjustment to the MPS to richen the mixture might eliminate your light throttle hesitation.

If you don't have an AFR gauge installed yet that can help confirm what Chris was saying.

I had that for a while and eventually was able to get it smoothed out. But as I adjusted fro one thing it always seemed that something else got out of whack so I decided to quit chasing.

thanks for input- sorry for the highjack-
yes I have a AF meter installed, and I have been playing around with it for some time, I have now tuned 2 MPS that are pretty dialed in- here is what I have observed, just this week since weather has been perfect ive been driving the car to work which is a 25 mile , 30 minute commute- the AFR reads about 12.7-13.4 on cruising now, but when the hesitation hits the A/F meter reads suddenly more rich, like a drop in the gauge reading to a 9.5-10, and its just for a split second. my first thought was TPS but this board is new(once replaced it got rid of the bucking on acceleration at 3000rpm that is common with a bad board- I have zero issue on hard acceleration) so then my next thought was grounding but that would cut out the injector firing and lean it not make it more rich right?? I defer to those with more experience playing around with this.

like I said , sorry for the highjack but I know you played around with yours for a long time before going to this system,- but I am watching close to your progress and very interested in seeing how the system comes together- I think you are going to really like the ability to program on the go with a system like this!!!

so please keep updating us with all the exciting and boring details! LOTS OF PICS!

[Mblizzard]

VW Passat idle air control valve for cold starts. Hopefully better than the 40 year old Auxiliary air valve. At this one can be controlled.

interesting!, I have not seen this discussed before- could this be used with a d-jet application as well??

No way to control it on D-Jet. It uses pulse width modulation to control the opening something that the D-Jet just cant do. I did play with using a normally close electrically controlled valve and a thermal switch to replace the AAV. worked pretty well but it was and off or on approach so there was no gradual transition between open and closed.

[VaccaRabite]

VW Passat idle air control valve for cold starts. Hopefully better than the 40 year old Auxiliary air valve. At this one can be controlled.

This is exactly what I need to add for my car.

Zach

[Mblizzard]

Big day! More wires in the car now than on the bench!



New injectors installed and wired!



Placed idle air valve in an out of the way but close location.



Getting closer. A few more days of working and should be ready to start it!

[Mblizzard]

VW Passat idle air control valve for cold starts. Hopefully better than the 40 year old Auxiliary air valve. At this one can be controlled.

This is exactly what I need to add for my car.

Zach

Got it for $28 off evil bay. I can get you the link.

[Mblizzard]

I had a question about changing to new high impeadance injectors. I never checked the old ones but I am sure of my flow rates and that the injectors are matched. May not make ny difference but i a;ways felt i had one injector that caused a cylinder to run rich. Made it hard to work with the D-jet limitations.

Working from a matched set now.