stock boost solenoid connections

[Paul C]

Just wondering if anyone knows what the ecu pinout connection is for stock boost solenoid.It is required for use with map ecu2 and have so far been unable to locate actul pin.
Thanks Paul c

[Kenneth]

Just wondering if anyone knows what the ecu pinout connection is for stock boost solenoid.It is required for use with map ecu2 and have so far been unable to locate actul pin.
Thanks Paul c

should be in the members section... http://www.clubvr4.com/forum/showthread.php?t=4414&highlight=ecu+pinout

this thread should provide all the info you need

[Nutter_John]

I think if you disconnect the stock solenoid then it throws up an error

[mpau009]

Are you planning to use the stock solenoid for the MAP2 then Paul? Do you know if the solenoid is up to the task?

I ask because i dont know if i should plumb up the stock one again when i install the MAP, or just cut into the wires to my aftermarket one:thinking:

I actually wondered why these aftermarket controllers dont just use the stock one anyway, does anyone know?

I'll be keeping an eye on this thread to see how you get on:2thumbsup

[Nutter_John]

http://www.vividracing.com/catalog/product_info.php/cPath/51_374/products_id/7784

Should be ok as a replacement for the stock solenoid

[Wodjno]

The Stock Solenoid is up to the Job /yes

It can be used to increase Boost levels beyond that of the levels the Stock ECU uses. This has been done by a Club Member and as far as i know there are no issues with Error codes

[Paul C]

The map ecu instructions indicate you can use the stock solonoid and i pressume ours should be ok. I have read in the library that the connection may be pin 7 but t has question mark next to it so are just after a confirmation for this as i dont want to start cutting wires for no reason.

Thanks

Paul Clark

[Dan_G]

I think if you disconnect the stock solenoid then it throws up an error

I disconnected mine and bypassed it when I connected my AVCR and havent had any adverse effects... yet.

maybe it would show up if they plugged it into an MUT.

[bernmc]

There are pin diagrams for the EVO IV to VIII here (http://www.lancerregister.com/showthread.php?s=&threadid=142077&highlight=pin+out)on MLR, all of which show pin 11 as 'waste gate solenoid'...

[Wodjno]

http://www.clubvr4.com/forum/showthread.php?t=18556&highlight=ecu

[bernmc]

http://www.clubvr4.com/forum/showthread.php?t=18556&highlight=ecu

No mention of the boost solenoid in those diagrams...?

[Nick Mann]

Does the VR4 have any kind of boost control on the ECU? I have always been under the impression it doesn't.

I am assuming that the boost solenoid is controlling the wastegates?

Where is it physically?

[Wodjno]

Pin Job
26 Pin connector (B-32)
1 Injector 1
2 Injector 3
3 Injector 5
4 Idle Speed Servo
5 Idle Speed Servo
6
7
8 Fuel Pump
9
10 Coil Pack B
11 Coil Pack C
12
13 Injector Ground
14 Injector 2
15 Injector 4
16 Injector 6
17 Idle Speed Servo
18 Idle Speed Servo
19
20
21 Radiator Fan Relay ?????
22 AC Compressor Relay ?????
23 Coil Pack B
24
25 Ignition Power (not earthed on ignition)
26 Ground

16 Pin connector (B-33)
1 31
2 32
3 33
4 34 Mivec 1 on an FTO – Boost Solenoid 1 on a VR4??
5 35 Mivec 2 on an FTO – Boost Solenoid 2 on a VR4??
6 36
7 37 Power Steering Oil Pressure Switch
8 38
9 39
10 40
11 41
12 42
13 43
14 44
15 45 Air Con and INVECS-II Pressure switch

12 Pin connector (B-34)
1 51
2 52
3 53
4 54 Alternator
5 55 Alternator
6 56
7 57
8 58 RPM
9 59
10 60 RPM
11 61
12 62

22 Pin connector (B-35)
1 71
2 72 Intake Air Temperature
3 73
4 74
5 75
6 76
7 77
8 78 Detonation Sensor
9 79
10 80
11 81
12 82
13 83 Engine Coolant Temperature
14 84 Throttle position
15 85 Sensor Line
16 86 Speed Sensor
17 87
18 88
19 89 Air Flow
20 90
21 91
22 92

Courtesy of Mr Richard Blatty :D

[bernmc]

Does the VR4 have any kind of boost control on the ECU? I have always been under the impression it doesn't.

I am assuming that the boost solenoid is controlling the wastegates?

Where is it physically?

Yes, the ECU does control the boost - by measuring airflow (rather than boost directly) and activating/deactivating the boost solenoid accordingly. The boost solenoid sits below the intake pipes on the nearside side of the engine - next to the Fuel solenoid. Explanation and pics in detail in my EBC thread - http://www.clubvr4.com/forum/showthread.php?t=22445

[Paul C]

Pin Job
26 Pin connector (B-32)
1 Injector 1
2 Injector 3
3 Injector 5
4 Idle Speed Servo
5 Idle Speed Servo
6
7
8 Fuel Pump
9
10 Coil Pack B
11 Coil Pack C
12
13 Injector Ground
14 Injector 2
15 Injector 4
16 Injector 6
17 Idle Speed Servo
18 Idle Speed Servo
19
20
21 Radiator Fan Relay ?????
22 AC Compressor Relay ?????
23 Coil Pack B
24
25 Ignition Power (not earthed on ignition)
26 Ground

16 Pin connector (B-33)
1 31
2 32
3 33
4 34 Mivec 1 on an FTO – Boost Solenoid 1 on a VR4??
5 35 Mivec 2 on an FTO – Boost Solenoid 2 on a VR4??
6 36
7 37 Power Steering Oil Pressure Switch
8 38
9 39
10 40
11 41
12 42
13 43
14 44
15 45 Air Con and INVECS-II Pressure switch

12 Pin connector (B-34)
1 51
2 52
3 53
4 54 Alternator
5 55 Alternator
6 56
7 57
8 58 RPM
9 59
10 60 RPM
11 61
12 62

22 Pin connector (B-35)
1 71
2 72 Intake Air Temperature
3 73
4 74
5 75
6 76
7 77
8 78 Detonation Sensor
9 79
10 80
11 81
12 82
13 83 Engine Coolant Temperature
14 84 Throttle position
15 85 Sensor Line
16 86 Speed Sensor
17 87
18 88
19 89 Air Flow
20 90
21 91
22 92

Courtesy of Mr Richard Blatty :D

If the vr4 has only one boost solonoid then this information is no good as it would be like guessing. will have to carry on searching for output to solonoid

[Wodjno]

.....

[mpau009]

I was just having a look at pulling my aftermarket one out, and iv pulled out the stock solenoid, dont know if it will help or not, but you might be able to match the wires from its plug to the ecu pinouts?

It was a bit hard to photograph, but one wire is solid red, the other is yellow, with a bluey green/turquoise coloured (a bit dirty) thin stripe on it.

Unfortunately it also confirmed my suspicion that i snapped a plastic connector getting the hoses off a year ago/pan

[Wodjno]

No mention of the boost solenoid in those diagrams...?

Look again Sheep Boy :D

[mpau009]

Look again Sheep Boy :D


Iv looked several times too, but just dont have any faith in my conclusions..

Does that make it pin 43? on The Vees list (from the link above 34/35 are blank in that version:thinking:) Vacuum solenoid (not Vacuum solenoid valve) which is a Y-G colour?

this is confusing me, and i am going to need to wire it up the same in a week or so.:thinking:

I'm not so smart with this wiring stuff and dont want to mess anything up, so feel free to spell it out for me dumb dumb style...:party3:

(i'm assuming youv already used this with the EManage Ultimate?)

[Paul C]

connected to pin 43 and it must be best connection i have made. Huge difference in power noticeable straight away. still setting up but pin 43 feeds solonoid for boost and there doesn't seem to be any faults.

[mpau009]

connected to pin 43 and it must be best connection i have made. Huge difference in power noticeable straight away. still setting up but pin 43 feeds solonoid for boost and there doesn't seem to be any faults.

Thats good news:happy: What sort of boost have you run through it so far?
Does it react just like the aftermarket controllers?/rally

[Paul C]

Thats good news:happy: What sort of boost have you run through it so far?
Does it react just like the aftermarket controllers?/rally


Never had aftermarket before but i would say so far it is really good. Trying to set the car up to 9.5psi as this is the lowest setting available. I have had spikes up to 1.1bar which obviously i am trying to avoid.FCD has kicked in a few times too, there is an opition to remove the FCD but at the moment it is a good safety barrier so i think i wil leave it in place.The car feels totally different, it is more of a beast and is getting scary to drive. I think boost is kept low for safety.

at some point this week i will be installing the 'on the fly' map switch so i can have a low boost and high boost map. Eventually the 2 settings will be mapped for economy and sports mode which can be switched on the go.

[Eurospec]

Paul, do you have a dtalogging capability?

If so, check for knock just to be safe. Also, you might want to reduce the gain setting if the boost is overshooting the target. Another thing to check is your duty cyle table vs the C duty. That will tell you if the map ecu is detecting the overboost condition, and stored in the C duty table will be a more appropriate value for you to have in your main table.

Hope thats helpful.

Cheers,

Ben.

[Paul C]

Paul, do you have a dtalogging capability?

If so, check for knock just to be safe. Also, you might want to reduce the gain setting if the boost is overshooting the target. Another thing to check is your duty cyle table vs the C duty. That will tell you if the map ecu is detecting the overboost condition, and stored in the C duty table will be a more appropriate value for you to have in your main table.

Hope thats helpful.

Cheers,

Ben.

Its a game of trial and error following the c duty. If the c duty indicates a high percentage like 90 and you use this setting the next time you look it might indicate 40. In the process of seeing how the solenoid/boost reacts to changes each time keeping over boost down and to a minimum.

what mode where you thinking of using, i have mine currently set at normal?

[Eurospec]

I would use the inline mode if you are using the stock boost solenoid.

Mine is set up for ext wastegates, so its all kinda backwards.

Cheers,

Ben.

[valmes]

Stock boost solenoid works as an electrical "bleeder valve" and it's not a good way to increase your boost... it's a "boost leak"...

[Paul C]

Stock boost solenoid works as an electrical "bleeder valve" and it's not a good way to increase your boost... it's a "boost leak"...

i'll bare this in mind as i am thinking of changing it back to stock and fitting external solonoid.This is so when i swap mapecuv2 between primary/secondary maps i can have factory settings for one map as map ecu doesn't allow the boost to turn down far enough and i am after an economy mode and sports mode.

[Paul C]

ordered perrin solonoid and recirc bov from vivid racing. Will post difference over standard when it arrives and fitted.