1998 GMC Sierra "tell cars cpu bad" Questions

...cpu, it will tell you the cam timing, you can only be + or - 2 degrees. using the tool while the engine is running you move the distributor slightly, clockwise is advance, counterclock wise retards, ...

this will probably be cheaper than guessing and hoping replacing things will fix the problem! need a abs cpu to find out what is wrong usually speed sensors go bad. cpu tells you exactly what is wrong

how to tell when o2 senser is bad poor fuel economy is a give away as the CPU will not be able to correct the air/ fuel ratio. Run fault codes is another way.

...Smells of burning gas out of the exhaust. have your o2 sensor checked. if your sensor goes bad it will tell cpu that your not getting fuel and it will continue to dump fuel to injectors or ...

cpu flashed, please help its too nice of a car still to not be driving it>>> This is often due to bad wheel speed sensor. Have someone with a good scan tool able to read ABS codes run a scan,

bad vibration while car is not running/moving When i turn on the car, it satrts vibration which can be felt anywhere in/out side the car. It is there in parked, normal and in geared condition. once I ...

...of things a lose wire or connection a bad sensor a dad cpu go to checkers and have them pull the codes they will tell you what it is and let me nkow i will try to help you fix the issue over ...

...tell good and bad, not just bad things.! car starts and runs and drives ok? day time? dash dimmer turned down, kids played with dads car? well tail lamps dead (really are up to 10 or more parking ...

...camshaft postion sensor they both tell the onbord cpu to when to fire spark to each cylinder if they are bad symtoms are hard starts or no starts at all on most vehicles not starting is what ...

...voltage . Replace the knock sensor knock sensor are used to tell the CPU to alter the fuel air ratio and the ignition timing to suit rpm's and load . If it is out then the code 18 may be the result