[desertman123]

Here's another data point.

Idle was mostly good, but sometimes would feel like I have the AC on - RPMs are consistent but the car is just vibrating.

[FW190]

Well I got my hands on 2 sets of DISA valves. Seems like the motor of one of my small DISA is toast. I removed it and opened up, and it was covered in oil and black dust from the brush/magnet??? I should try to spray the inside with brake cleaner perhaps to remove all that dirt and oil? Anyway, it's a Johnson Motor, it would be amazing if someone could figure out what kind it is so the BMW community could entirely overall their DISA valves

https://ibb.co/4mWGkkH

https://ibb.co/2NJXT9J

https://www.johnsonelectric.com/en/p...tion/dc-motors

[Blueeyesredpanda]

Originally Posted by FW190

Well I got my hands on 2 sets of DISA valves. Seems like the motor of one of my small DISA is toast. I removed it and opened up, and it was covered in oil and black dust from the brush/magnet??? I should try to spray the inside with brake cleaner perhaps to remove all that dirt and oil? Anyway, it's a Johnson Motor, it would be amazing if someone could figure out what kind it is so the BMW community could entirely overall their DISA valves

https://ibb.co/4mWGkkH

https://ibb.co/2NJXT9J

https://www.johnsonelectric.com/en/p...tion/dc-motors

The easiest way would be emailing Johnson Motor

[johnmyster]

Not a very big Johnson.

[dave4]

Has anyone used the Rein DISA from Rockauto?

https://www.rockauto.com/en/parts/re...actuator,17824

[bluewater328]

Originally Posted by dave4

Has anyone used the Rein DISA from Rockauto?

https://www.rockauto.com/en/parts/re...actuator,17824

In reality, they're all probably produced by two chinese manufacturers. Just watch out for the pins being too thick. I have a version like that which has the updated metal rod that transverses the fin. It's been working fine for me. Just make sure to test them before you put the manifold back on.

I have an eBay seller that sold me the one I got if you want. PM me so I don't feel like I'm advertising for the guy.

[wols0003]

I bought one off of Ebay and the pins are too wide. The plastic plug doesn't go in all the way.

[Blueeyesredpanda]

Originally Posted by wols0003

I bought one off of Ebay and the pins are too wide. The plastic plug doesn't go in all the way.

Return it then

[wols0003]

Originally Posted by Blueeyesredpanda

Return it then

Yeah, unfortunately the seller,
jws-top2017 with over 3,000 feedbacks disappeared a few days after I received the disa. eBay customer service says that eBay will directly refund me within 3 business days.

So I'm trying to find out which disas on eBay actually function. By the way, I sent you a PM earlier today.

[Blueeyesredpanda]

Originally Posted by wols0003

Yeah, unfortunately the seller,
jws-top2017 with over 3,000 feedbacks disappeared a few days after I received the disa. eBay customer service says that eBay will directly refund me within 3 business days.

So I'm trying to find out which disas on eBay actually function. By the way, I sent you a PM earlier today.

Always pay with paypal. Didn't get your pm btw.

[bryanjb]

Originally Posted by wols0003

Yeah, unfortunately the seller,
jws-top2017 with over 3,000 feedbacks disappeared a few days after I received the disa. eBay customer service says that eBay will directly refund me within 3 business days.

So I'm trying to find out which disas on eBay actually function. By the way, I sent you a PM earlier today.

I've found this thread, as well as the big thread re 3SIM tuning really helpful. At Freedomfries88's suggestion, I tested my DISA valves, which lead to a long, strange trip with chinese aftermarket DISA valves.

I had the problem of oversize pins on the small DISA, so I machined the pins down until the connector fit. Don't ask...

As for the large DISA, I am about to post this review on the cheezy chinese seller's products on ebay. This may seem extreme, but after wasting way too much time on this, its clear that there are only one or two chinese aftermarket manufacturers, but many sellers getting them bulk, maybe thru Shenzen connections, or Alibaba, or whatever. Just read before you buy...


SERIOUS PROBLEM WITH THESE AFTERMARKET DISA VALVES, SAVE YOURSELF

PROBLEMS AND READ!!!

After going around with this seller attempting resolution, I am

compelled to share what I found to save other buyers the same misery.

My BMW uses this DISA valve on the intake manifold. I found my old OEM

DISA valves were slow and didn't close or open fully. I used INPA

which has diagnostic functions that allow tests of many sensors and

actuators on the car. Both this DISA (left or large) and smaller were

replaced with aftermarket parts, both clearly chinese made.

I received this part from the seller autopartszone2008, AKA suretop,

AKA gaoshuoauto_6, (i will add others as I find them) in Feb 2019 and

was only able to test this in July 2019. Using INPA on my laptop, and

connected to the DISA connectors in my car, I was suprised to see the

large LEFT DISA *opens when commanded to close, and closes when

commanded to open*.

I have been very patient trying to resolve this with the seller, and

was sent a second unit in early August 2019 which displayed the same

problem. At this point, ALL CHINESE AFTERMARKET DISA VALVES MUST BE

CONSIDERED SUSPECT UNTIL TESTED WITH BMW INPA SHOP TEST PROGRAM!

Anyone with a three stage manifold that uses one of these DISA valves

will actually *hurt* the car's performance, and could conceivably

damage the car, as the controls will be adding fuel for intake

manifold conditions that are not present.

This seller is attempting to evade the fact that these DISA valves are

flawed and DO NOT OPERATE PROPERLY! They had me send back both flawed

units at my expense, but now are refusing to abide by our agreement

and refund my purchase $. Again, I never used either DISA they sent,

but only tested them to verify the flawed operation.

BUYER BEWARE! IF YOU HAVE NOT TESTED ONE OF THESE DISA VALVES, YOU

CANNOT BE ASSURED IT IS WORKING AS ADVERTISED!

[bryanjb]

BTW, I did get everything tested, verified operational, re-assembled, flashed, and running. And......

This is like a different car. Mileage is up from 24ish to over 27 without hypermileing, but the real difference is the WOT power is *VerY* noticeably improved.

I don't get here much, but I'd like to thank each and every poster who has contributed, but mostly the big guys that figured out how to hack the MSV-80, and pull out and make available the 330 tune.

Just a great project, challenging enough for me at the level I work, very nice results for the effort on my E91Xi.

[gT-BMW]

hey guys i also have the 2aac code and have a bit of hesitation at low rpm. So im shopping for a set of new disa valves. Just curious were are you guys buying your replacement disas?

Is anybody else here having any luck with ebay disa valves?

theres a seller on amazon thats selling disa valves with the metal shaft for a decent price. anybody here tried them out?

https://www.amazon.com/JDMSPEED-Inta...AYHQP579FPP1BP


I really dont want to spend $600 on disa valves its kind of ridiculous how expensive those lil things are compared to water pump/thermostat kit from fcp euro.

[bryanjb]

Originally Posted by gT-BMW

hey guys i also have the 2aac code and have a bit of hesitation at low rpm. So im shopping for a set of new disa valves. Just curious were are you guys buying your replacement disas?

Is anybody else here having any luck with ebay disa valves?

theres a seller on amazon thats selling disa valves with the metal shaft for a decent price. anybody here tried them out?

https://www.amazon.com/JDMSPEED-Inta...AYHQP579FPP1BP


I really dont want to spend $600 on disa valves its kind of ridiculous how expensive those lil things are compared to water pump/thermostat kit from fcp euro.

JDMSPEED is the same company selling the reversed operation DISA valves on ebay mentioned in my note above. I see their seller name on my paypal receipt. If you cannot test the valves on INPA, consider that they are possibly selling the large valves with the reverse operation problem I found.

[Blueeyesredpanda]

Originally Posted by gT-BMW

hey guys i also have the 2aac code and have a bit of hesitation at low rpm. So im shopping for a set of new disa valves. Just curious were are you guys buying your replacement disas?

Is anybody else here having any luck with ebay disa valves?

theres a seller on amazon thats selling disa valves with the metal shaft for a decent price. anybody here tried them out?

https://www.amazon.com/JDMSPEED-Inta...AYHQP579FPP1BP


I really dont want to spend $600 on disa valves its kind of ridiculous how expensive those lil things are compared to water pump/thermostat kit from fcp euro.

I have a set of new OEM BMW disa for sale if you are interested.

[blackknight]

Originally Posted by FW190

Well I got my hands on 2 sets of DISA valves. Seems like the motor of one of my small DISA is toast. I removed it and opened up, and it was covered in oil and black dust from the brush/magnet??? I should try to spray the inside with brake cleaner perhaps to remove all that dirt and oil? Anyway, it's a Johnson Motor, it would be amazing if someone could figure out what kind it is so the BMW community could entirely overall their DISA valves

https://ibb.co/4mWGkkH

https://ibb.co/2NJXT9J

https://www.johnsonelectric.com/en/p...tion/dc-motors

maybe a serial number or code would help us find the model of the motor.

[moebiuz]

Bump! Hope someone sees this. Can I use the chord of the large DISA to test a new small DISA that I bought? Or are the chords specific for each valve?

Thanks