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Hi, I put a new stereo and and Amp and Subs in the car but I am getting a high pitch noise from speakers. When you accelerate the noise gets louder. Any ideas ? Thanks

:mad:Ok, this is going to sound really weird. (1992 SC400) 4.0 L I had a big problem of not running good and no power. I put in a new fuel pump,coded check engine light to maf (swapped one from a junk yard). Did some diagnostics and it said that the ECU needed to be replaced. I sent the ECU out...

I coded out MAF and air temp control sensors( they are combined in MAF). After diagnosing it says that I need a new ECU. I sent the ECU to Foreign Auto Computer Repair, Inc. in florida. I got them off the web. They sent it back and said that they fixed something(leakey acid damage). I...

looking for what the resistance of wires and of sensor, what should they be disconnected and connected at the sensor and at the ecu . I swapped the sensor and I have the same problem so I want to test they sensor, the wires going ot the ecu and the voltages. I just don't know what the readings...

the check engine light coded 24 and 31. Mass air flow and air temp control. Air temp I guess is part of the mass air flow. I swapped mass air flow and same problem. I need to know the input and out put voltages at the mass air flow and at the ECU to test . Does anyone know this...

Hope this helps someone. I bought my son a 1992 Lexus sc400 and the drivers side headlight gets condensation on the inside (have not found a solution yet). Both headlights were yellowish and foggy and car did not light up the road very well. I used 2000 grit sand paper and WET sanded...

I changed the anti freeze in my kids car. anti freeze gurgled all over motor trying to get the air out of the thing. figured out the plug ontop of the thermastat housing and all set. Now the car is hard start and hard idle and no power to drive . I put in a new fuel pump=not the problem...