Guest markb Posted March 6, 2009 Share Posted March 6, 2009 I Have a 1993 Jspec supra twin turbo 2JZGTE. I did a complete BPU. Now the problem: If the supra run stationary the fuel is according to the wideband way to rich. And if I give a lot of gas the fuel is according to the wideband way to lean and if a drive slowly there's no problem with the fuel according to the wideband. would be this a main a defect Map sensor??? Sorry for the bad englisch. Hopefully can somebody help me with this problem. Best regards, Mark From the Netherlands. Quote Link to comment Share on other sites More sharing options...
bignum Posted March 6, 2009 Share Posted March 6, 2009 What numbers are you seeing from your wideband? Quote Link to comment Share on other sites More sharing options...
Guest markb Posted March 6, 2009 Share Posted March 6, 2009 What numbers are you seeing from your wideband? The max. off the wideband lean 3.5 and rich 0.6 And it should be 1.0 It's a VEMS wideband. Best regards, Mark Quote Link to comment Share on other sites More sharing options...
Luxluc Posted March 6, 2009 Share Posted March 6, 2009 can you just give info on what modification you have (injectors, pump, ecu) Quote Link to comment Share on other sites More sharing options...
bignum Posted March 6, 2009 Share Posted March 6, 2009 It sounds like the fueling is out on closed loop so your stock 02 sensor could be at fault. Quote Link to comment Share on other sites More sharing options...
Guest markb Posted March 6, 2009 Share Posted March 6, 2009 can you just give info on what modification you have (injectors, pump, ecu) Original Injoctors and ecu. I have 540cc injectors and apexi Safc ready to build in the supra. Electronics Apexi AVC-R Boost Controller Apexi Turbo Timer Black Color STRI Boost 2Bar STRI EGT STRI Oil Pressure STRI Oil Temp STRI Water Temp VEMS 52mm wideband Meter Engine Aluminum Radiator JVTR Aluminum Radiator Hose Apexi Power Intake Apexi Radiator Cap For Toyota Denso IK22 Iridium Power Bougie Front-Mount Intercooler HKS SSQV Blowoff Valve JT-Performance Oil Cooler Kit JT-Performance Light weight Aluminum Pulley Kit Master BrakeCylinder stopper TRD oilcap Walbro Fuel Pump 255l/h Thanks for all effort. Best regards, Mark Quote Link to comment Share on other sites More sharing options...
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