Club G40 Forum

Technical => Engine and Transmission => Topic started by: Alex on July 09, 2009, 01:14:41 pm

Title: Crazy air fuel gauge
Post by: Alex on July 09, 2009, 01:14:41 pm
I think my Duostyling air fuel gauge has finally had its day.

It's suddenly started lighting up every LED, with some flickering, on the motorway.

The car's been running well recently, but stuttering a bit over the last week. I'm just wondering before I ditch the gauge altogether whether there's a chance my lambda has gone loopy and the gauge is actually fine?

Next question - where do I get a decent replacement. Annoyingly it's acted up now my new Stack Pro-Control gauges have turned up. I'm too fussy not to run a full set of matching gauges, and as I'm running three in the din slot and the battery gauge by the gear stick I now have no space for a separate afrm gauge.

Any recommendations for neat ones? Or is it worth going down the wideband route.
Title: Re: Crazy air fuel gauge
Post by: Robin on July 09, 2009, 01:34:05 pm
Wideband is the way forward, especially if you want to ensure that your engine is running correctly!
Title: Re: Crazy air fuel gauge
Post by: Max on July 09, 2009, 02:19:49 pm
Alex I have a Duostyling gauge lying around, do you want to try that one to check?
Title: Re: Crazy air fuel gauge
Post by: Alex on July 09, 2009, 03:10:25 pm
Actually, if I could Max that'd be awesome! I reckon mine's goosed though.
Title: Re: Crazy air fuel gauge
Post by: GTG40 on July 09, 2009, 03:53:52 pm
can you connect a wide band to the standard ECU tho?

i got a standard bosch lamda from here

http://www.lambdasensor.com/main/bosch/price.pl?item=0258003114 (http://www.lambdasensor.com/main/bosch/price.pl?item=0258003114)

reasonable price and had no problems
Title: Re: Crazy air fuel gauge
Post by: hayesey on July 09, 2009, 05:28:26 pm
don't connect a wideband to the ECU, leave the stock lambda in place connected to the ECU and run the wideband as well connected to the wideband gauge.  Some wideband systems have narrowband emulation but by all accounts it doesn't always work too well.  Best of having both probes in at once.