Sun MCA 3000 engine analyzer

[engineer2]

Turn it on and see what happens. Not familiar with that particular model, but they all work about the same. Look for error messages. See what comes up when you bring up the gas analyzer. You should hear a pump running (it's usually a Thomas brand two-headed pump). Likely the gas analyzer will be out of calibration. If it has a bottle of cal gas, you could try to calibrate it. If it asks for information instead of throwing error messages, that is a good sign. If the gas bench is bad, I doubt you can get it repaired cheaply as parts may not be available unless someone cobbles something up.

For the engine analyzer part, make sure all the test leads are there and in good shape.

 

[gungatim]

pull the back off, look at the pump and where the lines are, if they are crumbled forget it. also the analyzer has a special unicorn horn piece in it that must be replaced regularly, and I don't believe you can get them anymore from what I read. basically if it turns on and will boot from the floppy's, and the pump runs, that's about all you can really expect.

I paid $40 for mine basically because I wanted the nice cart it comes on. it's heavy but I tore it all apart. dozen or so good circuit boards with UV memory chips and some gold cpu chips in there for e-scrap...but I wouldn't expect to be able to use the exhaust gas part of it...if the pump works, save that, and the power supply is pretty robust as well...

 

[engineer2]

If the gas analyzer lines are rotten, they should be replaced with Nylon or you will get false high HC readings.
Thomas pumps can be rebuilt.
The O2 sensor is the same as used for many types of devices and has a voltage output. It's normal for it to only last a year or so.
If the gas bench has electrical problems, good luck.
If the chopper motor in the gas bench goes out, it may be difficult finding the right replacment. Try lubing the motor bushings.
If the chopper wheel optical windows get dirty, you can take them out and clean them, but it is delicate work and they have to go back in the exact same way.

 

[sun_mca]

Hi,

I sell lots of discs and manuals for this analyzer (MCS 2000 and MCA 3000), maybe I can help you.

Feel free to check out my ebay:

https://www.ebay.de/sch/oldeisn/m.html?_nkw=&_armrs=1&_ipg=&_from=

Worldwide shipping is possible but please ask for shipping costs first before bidding. Shipping cost may vary.

 

[knardly]

Anyone have diskettes? I need the Ford one...

 

[gungatim]

I saved all the diskettes, I will see what I have, there's like a dozen of them.

Is it marked with anything specific other than just Ford?

 

[gungatim]

Have 3 red ones Ford, rest are gm and chrysler

 

[Fredy]

I have a MCS-2000. It is running well and the gasbank is calibrated every 6 months. There is a counter. After 6 months the tester stop working.
I am not using the unit anymore for the annual car inspection.
I hear you can stop that counter so no calibration needed and I can use the unit for general purpose.
Does anybody know how to stop the clock running or disable?

 

[DWalmer]

I have a MCS-2000. It is running well and the gasbank is calibrated every 6 months. There is a counter. After 6 months the tester stop working.
I am not using the unit anymore for the annual car inspection.
I hear you can stop that counter so no calibration needed and I can use the unit for general purpose.
Does anybody know how to stop the clock running or disable?

Can you post the vacuum lines or a diagram.
DW

 

[jeff mattson]

Hello,

sorry for my bad english, i`m write from Germany.

I`ll find your Forum cause i searched about Troubleshooting for my mca 3000

I`am also a owner of a Sun MCA 3000, it is in very good condition caus all is time it stand in a school for mechanics and it don`t often works and when not so like in a real Garage.

But my MCA3000 has one Problem, the battery on the Motherboard was empty and its lost in the Bios the Hard drive settings. and the SUN Company here in Germany has no more Documents for this system caus its to old . So is anywhere here who can look in his Bios the settings and can post them here in the forum?

Many thanks

Olaf

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973

 

[jeff mattson]

Sorry to dig up an old thread, I've just acquired a SUN MCA 3000 from the university where I'm studying. The machine is in really good condition, I don't think it's had much use at all. Unfortunately when I try to boot it up I just get a blank screen, nothing at all on it. I opened up the computer drawer on the back and there were 2 batteries dead, a 3 volt coin cell battery and a 6 volt with wires on it both of which were connected to different boards. I fitted two new batteries and it has made no difference. I have the operators manual and there is no reference to troubleshooting or any wiring diagrams. Any help would be appreciated!

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973

 

[jeff mattson]

Recent owner of a SUN MCA-3000 with two processors and two gas trays. It trys to boot but fails at the disk check screen. My "Master Program A" diskettes are good, but the "1994 Vehicle Limits and Diagnostics Enhanced B" diskettes are not recoverable. Any assistance in locating these disks or their content greatly appreciated. My unit is complete, formerly a CA smog station, if anyone still needs configuration information.

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973

 

[jeff mattson]

Hello Mike,
I realize this is a old post you made but I wanted to ask you.
I have a Allen Diagnostics II Engine Analyzer and I am looking for the Books for it. I do have the Factory Service Manual. I need the Owner/Operators Manual, any chance you may have it? Original or a Copy even a PDF copy would work.
Thanks,
Kevin kline

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973
i am looking for sun mca3000 service manual
i am willing to pay if need be
thanks

 

[jeff mattson]

I have several floppy disks for this unit. I can copy and burn them to a disk or I could e-mail them to you. Did you get the vacuum straightened out. I can use a picture of where the vacuum line routing. My vacuum lines were broken. I put them where it looked like they should go. I had the same problem with a low flow error, I was able to get the emission part to work. I had to pinch off a vacuum line, I don't remember which one. If you are still having this problem, I'll pull the back off the unit and find it. I don't have the main manual (I could use a copy). I do have several supplemental manuals.

Let me know what you need.

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973
i am looking for sun mca3000 service manual
willing to pay $
thanks

 

[jeff mattson]

I wanted to back up my disks, but when I tried to copy the disks, my computer did not seem to recognize them. It would sit there for a minute, and then ask me if I wanted to format them. I tried several different computers, but no luck.
I did get some pictures of the vacuum lines from another unit, and can make out where most of the lines go. PM me if you would like me to send them to you.
I talked with SUN (SnapOn), and they no longer have any information on this unit. They referred me to my local rep, and he MIGHT have some information. I talked with him, and he wants $250 to re-hose it, and another $200 to calibrate it. From what I understand, the O2 sensor drifts in these units and only last about 2 - 3 years.
I currently have the diagnostic portion working. The Exhaust portion is still down, and the Scope function is showing (DISABLED). not sue what that is all about, but that is the part I want the most. It is going to be a long road.

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973
looking for sun mca3000 service manual

willing to pay $
thanks

 

[jeff mattson]

Recently purchased another SUN MCA-3000 with dual processors and gas trays. Just recieved an 18 page parts manual for this unit from SUN and will forward to anyone interested. Still need the Master "A" and "B" boot diskettes.

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973
looking for a service manual for the 3000
i can pay $

thanks

 

[jeff mattson]

Hey guys,

I have on e of these units myself, and have successfully repaired a low-flow issue with the infra-red unit. Try, this,

Opening the infra-red unit back panel containing the exhaust gas analyzer (the large unit on the right on the back) you will see a unit having a fan on it, blue in color with vacuum lines going to it. First, check the hoses, and then simply remove the four screws retaining the pump head. There is no gasket, and the valves are stainless steel. My problem was that exhaust particulates had gathered on the valves, eliminating the proper operation. When I cleaned the valves, (they are reed-type), the unit performed perfectly, including the vacuum supply for vacuum testing. I also have the complete software package for the vehicle testing of specific on-board computers. Let me know... Ray

i have a restored sun mca 3000
i have the same problem with mine has dual floppies
and now i have blank screen load
can you guide me how to fix the problem?
thanks jeff [email protected]
320 279 3491
612 789 3973
looking for sun mca3000 service manual

thanks