aaddzz123 Posted October 13, 2011 Share Posted October 13, 2011 Ok so I figure they control the fuel and air someway. But what are the pros and cons of the unit and how much are they worth? From what I've heard, they control the air and fuel which sounds like a map to me? lol Someone help Quote Link to post Share on other sites
Starlet__SR Posted October 13, 2011 Share Posted October 13, 2011 Ok so I figure they control the fuel and air someway. But what are the pros and cons of the unit and how much are they worth? From what I've heard, they control the air and fuel which sounds like a map to me? lol Someone help The A'PEXi Air Flow Converters work by intercepting the signal between the car's air flow meter and the ECU. The Air Flow Meter is the device that tells the ECU how much air is entering the engine so that the ECU can add the correct amount of fuel.The ECU calculates the proper ratio of fuel to air for a stock, unmodified engine. Certain engine modifications can cause the dynamics of the engine to require more fuel. In this case, there are two common options for modifying the amout of fuel being input into the engine. One can either install larger injectors or increase the fuel pressure to the stock injectors is increased.Since the stock ECU thinks that it knows how much fuel it is putting into the engine based on the stock injector size and the stock fuel pressure, changing either of these will result in increased fuel. You may get lucky and just pick the perfect injector or fuel pressure that gives you the perfect air/fuel ratio. You may also get lucky and pick this weekends winning lottery numbers. In either case I wouldn't bet the farm on it. The Air Flow Converter gives you the means to adjust the amount of fuel that the ECU injects into the engine by modifying the signal from the air flow meter. This is done a specific RPM levels. This way you can tell the engine that a certain amount more air is flowing into the engine as a specific RPM than is really entering the engine, and the ECU will add that much more fuel. Decrease it at another RPM level and the ECU will decrease the fuel into the engine.What cars can use the AFC Air Flow Converter?In general, any Japanese-made car with factory fuel injection and a mass air flow meter. However, these have been adapted to work with many other cars made in Korea, the USA, and Europe. It all boils down to identifying the correct wire into the ECU. In general, the following wires must be identified:GroundPowerRPMAir Flow / Pressure Signal InputAir Flow / Pressure Signal Output Quote Link to post Share on other sites
Glanza_cl Posted October 13, 2011 Share Posted October 13, 2011 In short there a very very basic form of piggy back... that only controls fuel trim Quote Link to post Share on other sites
aaddzz123 Posted October 13, 2011 Author Share Posted October 13, 2011 call me stupid lol, but do GTs even have a MAF meter? :s Quote Link to post Share on other sites
Glanza_cl Posted October 13, 2011 Share Posted October 13, 2011 They run off a MAP sensor not MAF... same principle is applied though Quote Link to post Share on other sites
Starlet__SR Posted October 13, 2011 Share Posted October 13, 2011 Measures absolute pressure rather than flow.D Quote Link to post Share on other sites
aaddzz123 Posted October 13, 2011 Author Share Posted October 13, 2011 Right, so technically I should be able to buy one of these, plug it in and be able to control the fueling?... Is anyone using one of these? Quote Link to post Share on other sites
Starlet__SR Posted October 13, 2011 Share Posted October 13, 2011 Technically yeah you can control the fuelling, some do use them and have great resultsD Quote Link to post Share on other sites
RobSR Posted October 13, 2011 Share Posted October 13, 2011 yea quite a few people use em..if set up right you can get rid of fuel cut with them too Quote Link to post Share on other sites
aaddzz123 Posted October 13, 2011 Author Share Posted October 13, 2011 right... well i'm running a plug n play ecu atm so I don't have any issues with fuel cut... Does this "computer" work as a wideband as well? Give me a afr reading? At the mo I have a fse fpr with a gauge so I can easily adjust the fueling. All I really need is a wideband but if this thing will tell me a reading and let me adjust it in the car electronically, then I may have to purchase one to save putting my head under the bonnet to set it up lol... Plus I like the sound of being able to adjust the fueling at different revs POP POP lol. Quote Link to post Share on other sites
5T4R7ET N/A Posted October 13, 2011 Share Posted October 13, 2011 it wont give you a wideband AFR reading, but its strongly reccomended that you get a wideband to aid setup. Quote Link to post Share on other sites
Snow Posted October 13, 2011 Share Posted October 13, 2011 if set up wrong (live mine was when i bought the car) it will run rough as fook and cut out lots ending up in a day of rewiring, cars not hit fuel cut once since removing it Quote Link to post Share on other sites
mk1kurt Posted October 13, 2011 Share Posted October 13, 2011 Ring Dan and ask him mate he knows al drop u a txt tomrrow av got a job on u will be interested in Adam Quote Link to post Share on other sites
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