Evo IX, EvolinkG3 and LC1

[Alex]

Hello guys, today I tried to connect an LC-1 (WidebandO2) to my Evo9, works so far, but only standalone. First problem: The LC-1 has an wideband anout (yellow cable), 0V=7.35 AFR 5V=22.xx AFR. Now I need an analog input to connect to EvolinkG3. There is an "Excess Connector" mentioned in the manual (using AN1 Volt for wideband lamda). Further down in the manual (page 33) the AN1 Volt ist already used by "Oxygen Sensor Signal", AN3-6 are not connected. Alle other Evos (1-8) have AN1 Volt connected to XS Connector (additional wiring loom I guess) So how do I connect the LC1 wideband analog out to an analog in of the Evolink? Second problem: The manual states (Chapter 8.2 Known issues, EvoIX) that some Evo IX models have incorect fuel pump speed control polarity. Is there a detailed procedure to check that? I think the fuel pump (walbro255hp) is running slow (or maxed out), I'm running a GT30, 1000cc injectors with 100% injector duty cycle. Any hints? Thanks and have a nice day/weekend.

[Guest Dave]

With the wideband you can wire it in through the factory O2 sensor signal wire and configure to suit

if you do not want to wire it in through factory sensor harness then you will need to connect wwith the use of an XS loom

 

for the fuel pump go to fuel pump speed output and check the polarity setting

 

Regards

Dave

[email protected]

 

[Alex]

Dave, thanks for the reply. I need to get one of those XS looms then,

I've checked the polarity setting (PCLink 3.40, Aux Outputs - Ign, Ignition Drive 8 - FP Speed), it is set to "Low". I think this output activates FP relay 3 (opens it, normally closed), that means the pump is operated with the resistor (low power mode). Should be the other way round, normally run in low power, when XOver point reached bypass the resistor.

I'll doublecheck that.

 

Bye

Alex