Hi, yes, you can measure the fuel pressure at the end ond of injector rail (about 3kg/cm2). Yes I mean evap but it carries many possibilities not familiar to me. But, check all leaks in air intake and vacum part, those are often compensated by ecu adding fuel resulting in higher mix. br Tapsa ps. in...

Hi, 231 is HO2S sensor telling too rich fuel mix in partial load situation. is your mpg down?Look after MAF, fuel pressure and evap.
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Hi, if you suspect tracks, then check also wiring and signals from front sensors. Do you get any DTCs? Got once bad signal from right rear sensor and replaced it and ABS warning went away. 850-94.
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Hi,
in addition to plug#3 try to swap the coil to see wether the misfire is moving with it. clean the maf connector as well.
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Hi, when you get familiar with the OBD A2/6 you can try the test modes as below (good luck), br Tapsa: Diagnostic test mode (DTM) 1 DTM is activated by a brief operation of the test button. The MFI module responds by displaying a DTC as perDTC table Erasing DTCs The DTCs may be erased only when all ...

Hi, I had this kind of ramping up idle and dropping low few years ago. Explained it to myself being computer trying to find optimal mix but failing. Cause was leak in air intake side. Mine was getting worse as engine was warming up and finally found the leak in air intake manifold gasket after it's ...

Hi, how is your #2 sparc? CPS is grouping sparc in two groups #2,4,5 and #1,3 when working propperly. When renewing the cup it is very easy to mix the wire positions and have false firing order. It should be 1-2-4-5-3, pay also attention to the rotor turning direction when checking the wiring. br Ta...