Moderators: IMOC Moderators, IMOC Committee Members
That's been done and the car has been dyno'd and is running massively rich. Do you think that the burnt oil could have messed up the lambda sensor (wasn't replaced very long before the turbo went) affecting its readings and causing it to overfuel? I know the rev3 turbo runs rich anyway, but we suspect it's choking it at the moment under high boost...if it's got "cooked on" oil it's gonna be just as much of a btch to clean of as it is on a downpipe etc. Under load its the ecu that controls the fuelbobhatton wrote:The o2 sensor only works at very low speed and throttle opening.
Thanks for that. Didn't realise that.
About how long would you guys expect to soak the sensor for? I'd rather not leave it off any longer than I need to but also don't want to be too 'eager beaver'. If anyone could give me a rough idea that'd be fab 
About how much am I looking at for a new one?£50 for a generic (mixed opimions on these...works fine for me)£100+ for the OEM...which lets face it...are bulletproof...if it doesn't work propperly when you step on it, and on tickover .... it really needs to be done...lol..thats most of driving, cruising is a small part of my daily blast anyhoo. It pulls well but on the dyno printouts it says the fueling is off the scale (possibly why we're about 30-40bhp down on the estimated figure). I put it back together last night and took it for a short run. Feels no less powerful but as I don't know what I'm looking for, it's hard to say what the score is and whether the sensor in question is the culprit. Fun 
, shonky coldstart switch can cause overfueling aswell. Starts up fine and seems to run well enough but the tester said we're overfuelling by a lot which is possibly killing off the power.'em a ring nd see what they say...I know how hard it is to shift the burnt oil on my exhaust, so the inside of a lambda, which is heated to boot...hmmm...reckon you should try and ponce one for a couple of pulls, see if there is a difference...on a warmed up engine of course. At least then I don't have to go spending over £100 to find out there were no problems with the original one Got my Rev3 a new one from here for £56.Kinsy wrote:http://www.sparkplugs.co.uk/
You can pick up genuine Denso lambdas here for the cost of the generic ones.
and she is running sweeeeet now. Pulls so much harder throughout the rev band. So while playing with adjusting timing between 8-11 degrees btdc we got an error code 52 on high load. To cut a long story short our knock sensor had finally degraded to a stage where it was actually reporting signal error to the ecu. It must have been deteriorating over time and misreporting knock to the ecu causing the ecu to retard the timing and run rich as its safety precaution (which would explain why the performance was so erratic sometimes and always feeling a bit on the flat side). Now that it's reading correctly it is running as it should do and the change is phenominal