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01-31-2013
Hi today i got a po300 misfire while going WOT from 2-3 shift. So far its only done it on a 2-3 wot shift. Also still have p0171 that i cant figure out. Im wondering if it could be my battery because ive had to jump my car a few times to start it in the morning.
01-31-2013
You have a vacuum leak or a dirty MAF.
Originally Posted by The Sunfire Guy
02-01-2013
I'll have to try and look again. I sprayed carb cleaner but didn't find anything.
02-01-2013
One of the things I've found that can cause a P0171 is low system voltage. Corroded battery cables, maybe a bad battery, poor connections that provide resistance etc.
Vacuum leaks are also common.
02-01-2013
Well I know my battery is bad cause sometimes the car won't start and when it does its a very weak crank.
02-01-2013
Alright so I tried spraying didn't notice any idle jump. My gauge says I'm going from around 600 something to 700. It jumps to quick to get an exact number.
02-03-2013
Alright guys its gotten a lot worse. Now the idle is supper jumpy and sometimes it will die completely and take a few secs to start uo again. I check for vac leak but didn't find one.
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