95 , 170K, 4.9, WILL START, WON'T START

1995 Cadillac Deville

Tiny

getthechad

September, 2, 2007 AT 8:48 AM

I have a 95 Cadillac DeVille, 170k, 4.9 engine and starting just a few days ago it has started to crank and crank but not start. Most of the time it starts up like it always has. Just sometimes it won't. I did a tune up in December, but I didn't include oxygen sensors. Wondered if this could be the issue? I have some codes from the computer but can't find any answer as to what they mean.

P012
P030
I027
I039
I052

I have MANY codes like 128PD39 that I got from the PCM codes, but there are about 50. If anyone could help me here or steer me into the right direction it would be GREATLY appreciated.

Thanks!
Chad Smith

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