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Old 03-30-2014, 08:33 AM   #41
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Kinda sounds like the problem I am having. The ignition module and crank sensor check will tell if there is power getting to the Ignition Control Module and if there is a signal from the Cranshaft Position Sensor and the Camshaft Position Sensor in real time so you can see if any of them quit while running.

At this point I am wondering if a permanent indicator of these functions with low power LEDS would be worth the labor. Since we have a rolling computer and we are having troubles with it maybe we need an indication that the some of the most important circuits are functional. If you combined this with a permanent fuel pressure gauge on the fuel rail You would have a good indication of engine function. Maybe a green LED to indicate ignition ground, a red LED for 12-14+ volts and flashing yellow LED for Crank and Cam position sensors.

I now have my car at home and the weather is starting to moderate though today we are supposed to get something like 2 inches of rain so it won't be today that I work on mine. I am really getting lazy and the dreaded tax time is now upon us....
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Old 03-30-2014, 08:46 AM   #42
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cam sensor wont kill the engine. crank sensor can be watched through live data if you have a scanner.
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Old 03-31-2014, 12:21 AM   #43
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update; hooked up fuel pressure gauge read 47psi through out. also had spark plug test light in line, car started right up fuel stayed at 47psi when engine got to operating temp spark stopped fuel stayed 47psi. only let it set for five minutes it started and died when it got to temp again. seems to be very temp sensitive. going to get it up on the stands an go from there, raining an suppose to turn to snow, tired of winter.
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Old 03-31-2014, 02:26 AM   #44
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"Cam sensor wont kill the engine. crank sensor can be watched through live data if you have a scanner." JWFirebird

The engine will run with a cam sensor not working. If the engine is running then that is a good indication that the Crank sensor is running and if the Crank sensor isn't working the engine won't run. True? But if the crank sensor doesn't work or is intermittent will you get crank sensor error code?? I have read on this forum that sometime or maybe most of the time a faulty crank sensor won't throw a code. I have to perform the Ignition Control Module and Crank position sensor tests from EasyAutoDiagnostics.com
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Old 03-31-2014, 10:59 AM   #45
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on this car the cam sensor controls fuel and is sort of a double check for the crank sensor. the only time you will get the code is if the correlation is wrong for what ever reason. if the sensor is bad it wont run and you wont get any codes. if the cam sensor is bad i think you get a code and it goes into "batch fire" mode with the injectors to get you home.

TJ its definitely the crank sensor then or the wiring going to it, if you have already replaced the icm
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Old 04-01-2014, 02:20 AM   #46
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"on this car the cam sensor controls fuel and is sort of a double check for the crank sensor. the only time you will get the code is if the correlation is wrong for what ever reason. if the sensor is bad it wont run and you wont get any codes. if the cam sensor is bad i think you get a code and it goes into "batch fire" mode with the injectors to get you home."

So this is interesting if I completely understand what you have said. In the case where you have a Camshft Pos. Sensor code present that means that there was some non-correlation with the Crankshft Pos. Sensor and that likely the Camshaft Pos sensor was functioning properly and that the Crankshaft position sensor was not working correctly somehow. When the Crank Position Sensor does not work at all the engine will not run and there will be no error code when you scan the engine when not running. When running if there is an intermittant problem in the Crankshaft sensor will this show up on the scanner? I do have a scanner and I think I checked it when the engine was running but I am not sure that I looked for any problems with the crank position sensor . There were codes for the Camshaft Position Sensor though when the engine was not running. And I could not find any thing wrong with the Cam Pos. Sensor. The Cam pos sensor was replaced and the voltages appeared correct. Sounds more and more like a problem with the crank Pos sensor or wiring associated with it. Something is definitely intermittent.
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Old 04-01-2014, 07:38 AM   #47
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there are several codes for each sensor, sort of electrical (low voltage, high voltage, etc) and with those they have the mismatch 1345 code supposed to be for timing chain mismatch. normally though you dont have a failure that sets the code on the crank sensor that will set a code. when it works the parameters are happy, no code and when it quits, the engine quits and the engine is sort of dumb if it stops rotating it doesnt know why and that doesnt set a code either or you would have codes every time you started it.
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Old 04-01-2014, 03:58 PM   #48
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Justin: That the engine would not throw a code while shutting down does make sense. Otherwise there would be lots of phony baloney codes coming up. I suppose that on the next start you would throw out the codes that did not repeat but maybe they thought that was extra complexity. The error code for the cam sensor makes sense now in that regard. I replaced it and the ICM on some experts advice with no change. I will say that the car ran really well during this time period it was throwing codes up until about a month ago. So it may be a broken wire or a failed connector but it may be the crank sensor itself.

I sure have gotten better information from this website than a some supposed experts that I paid money to. Thanks a lot for your comments and answers. I really appreciate the time you took here.
Not looking forward to pulling the harmonic balancer again. That was really tough the first time.
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Old 04-01-2014, 07:17 PM   #49
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its i a pain. must be easier for them to make it that way i guess, they had a few of the earlier engines that just went into the block, that seems like an easy thing. the ones on the trucks you can get to from the bottom and thats a ton easier too
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Old 04-02-2014, 02:07 AM   #50
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update; got car on jack stands pulled tire an used the starter to undo the crank bolt, place 1/2 breaker bar with a socket for crank bolt kept it about an inch off the lower control arm front bracket turn key for a second, bang an bolt was loose enough to take off with fingers, wow is all I can say, by far the fast an easiest way to loosen that crank bolt.. will put new crank sensor on and test it out tomorrow. thanks will let you know if it fixed my problem.
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