Do I have a short, dead battery, or bad alternator?
#1
Do I have a short, dead battery, or bad alternator?
Hey guys,
I have a 2002 Z28 it was throwing P0332, knock sensor code, and then my gauges stopped working specifically, gas, tach, and temp and a bunch of lights came on "service vehicle, abs inop, check gauges, brake light." When I plugged in my OBD2 scanner the lights went off and my gauges started to work again. Well, my car sat overnight and now it doesnt start. I jumped the battery and the car started up. When I shut it off it doesnt run again. Is that an alternator problem or battery. Or is there clearly a short somewhere?
Any help is greatly appreciated!
Thanks!
Evan
I have a 2002 Z28 it was throwing P0332, knock sensor code, and then my gauges stopped working specifically, gas, tach, and temp and a bunch of lights came on "service vehicle, abs inop, check gauges, brake light." When I plugged in my OBD2 scanner the lights went off and my gauges started to work again. Well, my car sat overnight and now it doesnt start. I jumped the battery and the car started up. When I shut it off it doesnt run again. Is that an alternator problem or battery. Or is there clearly a short somewhere?
Any help is greatly appreciated!
Thanks!
Evan
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#12
Teching In
Join Date: Sep 2007
Location: Ormond Beach, Florida
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Alot of people, but not all, think higher octane means better/faster burning, when thats not the case at all. Lower octane fuel ignites quicker then high octane. If your car calls for 93 use 93. That could be the problem with your KNOCK sensor, thats exactly what is senses. Change your oil.
#14
a knock sensor would probly be about 60-80 dollars a piece. i'd try using the correct octane before pumping extra money into it. do you need to know where the knock sensors are?
#16
I got the new battery car starts up but a bunch of lights come on including the service vehicle, brake, abs inop light, the tach stops working, gas gauge stops working and temp gauge stops working. When I plug in my obd2 scanner the lights go away and the gauges start to work...what does that indicate?
#18
I got the new battery car starts up but a bunch of lights come on including the service vehicle, brake, abs inop light, the tach stops working, gas gauge stops working and temp gauge stops working. When I plug in my obd2 scanner the lights go away and the gauges start to work...what does that indicate?
#20
On The Tree
iTrader: (1)
EXACT same thing happened to me. Turned out to be my battery terminals (side posts) were stripped resulting loose/wobbly connections. I changed to a top post (clamp style) battery and did some rewiring to make it applicable. Oddly enough I threw the P0332 code too. Found that problem to be melted knock sensor wire (ls2 block). I Spliced the wires and replaced the knock sensor too. No problems since. Issues with my car seem to come in waves.