tomasss
former PRVert
- Joined
- Oct 13, 2008
- Location
- Sydney, Australia
So, I am completely removing the TCU on my B204GT.
The boost pressure is going to be controlled via MBC, the radiator fan is gonna be controlled via external temperature switch so I can completely remove the unit from the car.
I checked the schematics and it looks like this (4/10 is EZK, 4/23 is LH2.4, 4/21 is TCU):
<a href="https://imgur.com/g1GJvqq"><img src="https://i.imgur.com/g1GJvqql.jpg" title="source: imgur.com" /></a>
And as I care about the outputs only, the pin # to consider are:
1 - goes to TCU solenoid (no longer valid) -> OK
4 - goes to fan relay (high speed) and also to the LH - any idea what this does in LH?
5 - goes to fan relay (low speed) -> OK (external fan control)
6 - blocking relay for A/C -> OK (no A/C in my car)
7 & 24 - goes to TPS potentiometer do I understand correctly that lh2.4 uses only the microswitch for the corner cases only? Somehow I thought it uses the potentiometer already...
The boost pressure is going to be controlled via MBC, the radiator fan is gonna be controlled via external temperature switch so I can completely remove the unit from the car.
I checked the schematics and it looks like this (4/10 is EZK, 4/23 is LH2.4, 4/21 is TCU):
<a href="https://imgur.com/g1GJvqq"><img src="https://i.imgur.com/g1GJvqql.jpg" title="source: imgur.com" /></a>
And as I care about the outputs only, the pin # to consider are:
1 - goes to TCU solenoid (no longer valid) -> OK
4 - goes to fan relay (high speed) and also to the LH - any idea what this does in LH?
5 - goes to fan relay (low speed) -> OK (external fan control)
6 - blocking relay for A/C -> OK (no A/C in my car)
7 & 24 - goes to TPS potentiometer do I understand correctly that lh2.4 uses only the microswitch for the corner cases only? Somehow I thought it uses the potentiometer already...