Hello what's up I have a 2004 infiniti g35 coupe and my problem starts from no where it was just a really hot day I was driving my car and them it loose power my slip vcd and check engine turn on the accelerator was responding to slow and I replace the throttle body the pedal position sensor and still the same I also notice that my tire pressure light are on but I just to have a 350z with tire pressure light on and never give me problems anyway I remove all the grounds I found and after moving a lot of staffs I found that the main ground that connects to the engine right under the water hose on the passenger side was corroded so I clean it and I put everything back together and banggg it was working fine and everything so I start putting everything back on the car cuz it was completely disarm and I disconnect that cable again and some other grounds to put this funny cream anti corrosion and when I turn the car back on those annoying lights vcd slip and check engine codes are p2128 p2127 p2138 and what I notice is that if I'm holding the pedal brake the car runs just fine I can rev it up and everything appears to work fine so I assume it was related to the brake switches I replace them and still the same so I try disconnecting the brake sensor on the bottom and it works fine no vcd slip check engine light but if I put the car on drive and push the accelerator hard it goes into limp mode again WTH so I'm assuming this thing is related with this sensor or the module that controls it I don't know much of electronic things but if I plug the multimeter on the accelerator pedal with the brake pedal depress I'm getting 5.0 volts I believe but if I release the brake with the car on or ignition switch on it raise to 12. Something volts and if the car is on it goes to like 13 or 14 volts and I think it supposed to stays at 5. Something volts if I'm right so im getting a really hard time with this car any help would be appreciated thanks
Aug 25, 2014 at 4:11 PM
