i have a 2000 chevy impala ls 3.8. since i bought it it had been shutting out on me whilst driving, but i always wrote it off thinking that it was because i was playing my music loud ( i have two 12" speakers in the back )
it has gottenn to the point where it wont stay on at all, ill start it and it will die immediately after.
i put a scan tool on and i got a code for the crank sensor, replaced that and it idled fine and drove fine until later that evening, when the exact same thing happened again.
ive changed all of the spark plugs, replaced the fuel filter, and tried resetting the computer (pulled power from battery for 5 mins)
now that ive replaced that crank sensor the code has been reset for it and i have no check engine light and the car still won't start and stay on
oh yeah, it will stay on as long as i i throttle it and its at it's rev limit, once i release the gas it will just die on me, while im pushing the gas black smoke will b pouring out of my exhaust... any advice/help will be great
I don't know how a plugged injector would affect the combustion cycle but I figure that would result in a CEL pretty quickly, which you're not reporting.
Sometimes they leak and stream fuel out instead of spray and that causes a good amount of unburnt fuel.
That's what the problem was with my car. My MPG's dropped off a cliff, performance suffered, and black smoke from the tail pipe. We replaced the MAF and FPR to no avail. At 116k I guess the injectors got a bit dirty and injector #4 was leaking fuel constantly, which contributed to my hard re-starts because it flooded the cylinder with fuel. Took every fuel injector off and brought it to my dad's shop with a injector cleaner. They work perfectly now. so I wouldn't rule out a bad or leaking injector.
_________________ 2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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