I made an A/F gauge and I'd like to drive it with the VEMS analog output, How?

[Marty]

I wired together a 10 LED bar display and a display driver chip. It's calibrated for a .01 - 5v input, and I'd like to feed the lambda output from the VEMS to it.

I'm getting confused because all the information seems to point to the "Round" gauge, and the pinout described in the help files seems to use a knock sensor EC15 #1 (for positive signal), or the O2 sensor heater EC15 #9 (for a grounding signal)

-How would I set up a basic lambda controlled 0 - 5v signal output?

[GintsK]

You want gat analogue signal from VEMS ECU? Not from Round?

IMHO the only way currently is datastream. I can't recall any feature what can be adopted for analogue mixture related signal output from VEMS.

Gints

[Marty]

Ok, I had this set up before with a WBO2 analog output (Innovate LC-1). Since VEMS eliminated the need for the LC-1, I was hoping I could still use this. Sounds like I can't without the round gauge though, is that right?

[GintsK]

The only analog signal output from VEMS ECU could be boost pressure. After some simple hardware mods. Outputs-> tach/boostgauge.

You still have two alternatives: VEMS LCD display. Or just warning lamp which is even better than gauge in race circumstances. Or combination of both.

[Marty]

thanks, that answers my question clearly. I'm not to the point of needing a warning light I think, so I may just eliminate my homemade  gauge. It's more of a street car at this point. Just hard to part with my own creations  heh

[GintsK]

May be you can transform it to boost gauge from mentioned output...