I've seen that you all do RRs after mods. Primary to check air/fuel ratio which is very important in modded coops. The problem is that after achieving Gtech and pretending to do the same on my sorry country I can't find anyone to do so The guys here only have RRs to do power checks and they said to me that the control air/fuel they make on lambda (stationary test). Does this seems any reliant at all Can anybody tell me how can I mamage to know the right mixture? Thanks
Re: air/fuel and RRs tests#98311 21/04/200614:2021/04/200614:20
You check the Air to fuel ratio by sticking a wide band lambda sensor in the exhaust before the Catalytic converter (fi you have one) - this is how it would be checked on a rolling road....
Re: air/fuel and RRs tests#98313 21/04/200618:1521/04/200618:15
Quote: I've seen that you all do RRs after mods. Primary to check air/fuel ratio which is very important in modded coops. The problem is that after achieving Gtech and pretending to do the same on my sorry country I can't find anyone to do so The guys here only have RRs to do power checks and they said to me that the control air/fuel they make on lambda (stationary test). Does this seems any reliant at all
Can anybody tell me how can I mamage to know the right mixture? Thanks
A lambda test at idle (stationary) is useless as it fuels closed loop, which bears no relation to the open loop fuelling based on internal ECU fuel maps, when the car is on boost.
The other option is buy a Wideband monitoring kit, as Suba mentions and check the fuelling yourself on the open road.
In all honesty, if you've only fitted a GTECH 1 then fuelling will be more than rich enough. Most Coops tend to run too rich anyway and even the standard chip will support much higher boost pressures.
Last edited by cosmograph; 21/04/200618:18.
Re: air/fuel and RRs tests#98314 22/04/200604:1522/04/200604:15
Thank you for the tips mates.Just want to know that everything's ok, and I've seen so many coop onwers talking about dead engines on the forum that I'm only going to feel better when I check the fueling. In any case you just make me feel a lot better cosmo
Re: air/fuel and RRs tests#98315 22/04/200615:1722/04/200615:17
you too?
