DTC 19?? WTF??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-19-2006, 05:52 PM   #1
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Default DTC 19?? WTF???

I went for a little drive, and had Dons scanner plugged in just to see how much KR I have (which is alot, but I think that is due to the trans slippage too). I went full throttle from a rolling start and when it hit about 5k, engine bucks and throws a code. "Great" I thought, so I read all the codes it had. Among them, one stood out...DTC 19 - crankshaft sensor problem. Well, I know the sensor works because the engine is running, but I look in my FSM'* and it doesn't even MENTION DTC 19. I also Googled it and still nothing about it.

Is this some sort of fluke w/ the PCM?
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Old 11-19-2006, 05:55 PM   #2
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I got the same code when my crank sensor was dying.
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Old 11-19-2006, 05:58 PM   #3
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But why is this code NOT in the FSMs?
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Old 11-19-2006, 05:59 PM   #4
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Good question. I have no answer. I think maybe it is in the 87-91 FSM.

Oh, 19 only showed up for me when it bucked like you describe.
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Old 11-19-2006, 06:08 PM   #5
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The camshaft sensor code will not make the car shut off.
The code will cause all injectors to spit fuel at one time instead of 2 injectors per spark.
Check the wires for the proper voltage A and C while grounded.
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Old 11-19-2006, 06:56 PM   #6
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It will run until the sensor stops sending a signal all together.
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Old 11-19-2006, 08:14 PM   #7
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Quote:
Originally Posted by sandrock
But why is this code NOT in the FSMs?
Because it is not a real code. You need a better scan tool.
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Old 11-19-2006, 08:23 PM   #8
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I'm not so sure about that. This page lists 84-92 codes, including 19 but also indicates it is for 88-91. Confusing, yes.

However it is quite obvious the 92 L67 PCM will properly spit that code out and a good scanner like my Actron will read it knowing that it is a 92 L67.

http://www.bonnevilleclub.com/forum/...ight=A&start=0

It also lists it as a short in the fuel pump circuit, which also could cause the hiccup. But replacement of the crank sensor did the trick for me.
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Old 11-19-2006, 08:53 PM   #9
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No, it is not a valid code accoring to my source...Maybe my source is wrong?
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Old 11-19-2006, 09:49 PM   #10
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Quote:
Originally Posted by motorhead
No, it is not a valid code accoring to my source...Maybe my source is wrong?
I never did trust those Soviet KGB technicians.
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