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I'd like to have a go at getting O2 closed loop feedback working with datalogit so I can get some stable fuel ratios off boost. I don't have a fuel temperature sensor so on long journeys, it seems like I am getting some small fluctuations when temperatures change. That, I think, is the only explanation I have for my fuelling going slightly lean (0.5 AFR), on a long journey (150+ miles). I've checked air temperature, voltages, fuel pressure and all the corrections available to me to no avail. I've also raised before that I get a lean condition when turning air conditioning on which is annoying again; grounding all seems fine and voltage corrections seem fine. I've been investigating and found that from most tuners, you'll get these problems if you're running everything in open loop because there's just so many things that need correcting, i.e. a small rise in fuel temp changes the amount delivered. I've got a regularly calibrated MTX-L wideband that I use for tuning which is plumbed into AN1-AN2 on datalogit. I've got O2 feedback turned off because I don't have any narrowband sensors on my car but I was thinking that I would be able to turn the MTX-L to provide output in lambda instead of AFR. If I do this, where do I sort the wiring? is it basically wiring the wideband into the loom that goes into PowerFC? Datalogit just shows 0.005 for O2-1 and O2-2 constantly. I would assume that once PFC sees the wideband putting out the voltages it expects for the O2 sensors, it shouldn't care whether it's a wideband or a narrowband and my AFR problems will go away. I can have the MTX-L display gadget just understand the voltages I tell it and to display the AFR accordingly so I shouldn't notice any visual changes.

So I have an R34 GTT with many mods: Apexi PFC w/ commander/datalogit, GReddy Profec Type S EBC, GReddy Intake manifold and fuel rail, RC 1000cc injectors, Massive Precision Turbo, Tial WG, FMIC, HKS SSQV, Aeromotive FPR, AEM Wideband, 3" Turbo-back Apexi exhaust, NGK BKR7ES-11's regapped at .030. On to my problem...... I've had the car now for about a month and a half and have been constantly working out the bugs. First was a new center section for the turbo due to an apparently recent rebuild that didn't include a thorough hot tanking and left bits of metal shavings in the oil feed line that led to blown seals and bearings. Fortunately it doesn't seem to have harmed any other parts of the engine yet, I have ran several quarts of oil through in an effort to remove the machining leftovers. Next came proper PCV/ catch can installation and hose routing seeing as how it only had valve cover breather filters and an unhooked PCV valve, as well as an un-plumbed AAC valve that was sucking in unmetered air. Also replaced the O2 sensor and saw a dramatic increase in fuel mileage as AFR's. However, once all of these things were replaced and repaired I noticed that the car did not want to pull as hard as before and that even though the idle was more stable at 1000-1100rpms it did not want to stay running if I let it idle for too long. And as of now the car won't start at all. I've checked all of the usual suspects: AFM, New plugs AGAIN, no vac leaks, fuel pump is working great and have great fuel pressure. I am thinking it is my CAS, but not sure because if I take it out and spin it I can hear the fuel pump run and the injectors clicking. BUT when watching the FC Commander it only shows the car getting 4-7 degrees of timing under cranking. As well as when hooked up to Datalogit it wants to sit at 6000 load cell also while cranking. Im not sure why it is not getting more ignition timing while I am cranking it. My tuner is even scratching his head as to why the car won't start. Im guessing part of it is due to not being able to see the start up cranking ignition tables on the Datalogit screen and even by altering the whole map to 40 degrees it still only read 4-7 on the commander!?! Oh and the boost control kit setting is turned off as well as I have re-initialized the Com twice and re-loaded the map to no avail. Sorry for my super long first post on the site, but I am at my wits end on this one and USA forum support is a little lacking when it comes to this one. . Any help would be greatly appreciated! Thanks!

FC-Datalogit for sale Haven't used this for about 3 years. Bought it new. Tuned maybe 3 cars with it. No CD but that's not a big deal. Will transfer to new owner to get access to the forum. Great condition $300 Eastern suburbs Melbourne. $20 to send wherever you like

Apexi Power FC w HC + Datalogit V2 Apexi Power FC with Hand Controller – R32 & R33 GTR $450 Perfect working, just removed from car FC Datalogit V2 Blackbox Apexi Power FC tuning $300 http://www.fc-datalogit.co.nz/datalogit.html • Works with all Power FC versions (No restrictions imposed on the number or type of vehicles tuned) • The FC-Edit software does all the things that the hand controller does plus much more • Log up to eight 0-5 volt analogue inputs • Connect to any 0-5 volt Wideband 02 Sensor and log A/F ratio • Firmware Upgradeable • Full size fuel and ignition maps (20 x 20) instead small sections • Lock /Unlock Apexi dealer protected maps and settings • Map trace and ghost trace • Rescale/Expand maps for high RPM and/or high boost applications • Adjust air temp correction tables • Saving and loading complete maps and fuel and ignition settings • The Power FC commander plugs into the FC-Box so you can still use it • Adjust the threshold for flashing the check engine or cat light for injector and knock warning ……..And much more but please note some types of Power FCs allow access to more items than others.

Hey All, I have a datalogit cable & software for sale. Handy tool for data logging a Power FC Equipped car or changing maps / tuning. Less than 12 months old. reason for sale is changing ECU for something else so it will no longer be required. Comes with the following. 1. Datalogit Interface box 2. Cable 3. USB Adaptor. 4. Software. Asking $250 willing to post at buyers expense. Located in Bunbury Western Australia but I do travel to Perth quite a bit for work. Cheers Pat

I have an FC Datalogit for sale for the Power FC. Updated to the latest firmware and comes with adapter cables. $200 USD plus shipping from Canada. Floor not included. more info here: http://www.fc-datalogit.co.nz/

Hey Guys, Couldnt modify my old post so I posted a new one with some lower prices, make me some offers. Prices are shipped Apexi Power FC (MAF Version) with two hand controllers (One brand new old style and one used one that works 3/4 time and had a blue screen as it was replaced) $800 Shipped Dataloggit Black Box /w USB Cable $230 shipped Unknown brand suction kit $45 shipped Greddy Y Pipe /w all needed couplers $230 shipped Bee R Type B (Nissan) brand new, still enroute to by house as we speak $240 shipped NO PIC YET AEM Methanol progressive V2 controller only, brand new, still enroute to my house as we speak $100 shipped - possible sale pending NO PIC YET Greddy Catch Can $100 shipped Nismo 3" Twin Turbo down pipe $250 shipped sale pending - Possible Sale Pending OEM R32 GTR ECU $60 shipped OEM GTR Injectors $80 shipped OEM RB26DETT Fan and housing $50 shipped NO PIC YET 2x OEM R32 GTR MAF Sensors $70 shipped

Hey Guys, This stuff is for sale as I am switching routes now. All prices are shipped within canada, internationally may require shipping to be added. Apexi Power FC (MAF Version) with two hand controllers (One brand new old style and one used one that works 3/4 time and had a blue screen as it was replaced) $900 Shipped Dataloggit Black Box /w USB Cable $250 shipped Unknown brand suction kit $45 shipped Greddy Y Pipe /w all needed couplers $260 shipped Bee R Type B (Nissan) brand new, still enroute to by house as we speak $240 shipped NO PIC YET AEM Methanol progressive V2 controller only, brand new, still enroute to my house as we speak $100 shipped NO PIC YET Greddy Catch Can $120 shipped Nismo 3" Twin Turbo down pipe $250 shipped OEM R32 GTR ECU $80 shipped OEM GTR Injectors $100 shipped OEM RB26DETT Fan and housing $50 shipped NO PIC YET 2x OEM R32 GTR MAF Sensors $80 shipped