1997 Computer change for diagnostics
Lead Driver
Joined: Sep 2006
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Again, the crank sensor will not be cylinder specific unless a tooth on the timing wheel is bent or chipped off for that part of the crank rotation.
The crank sensor is the reference signal to the PCM for all functions that need a time reference except fuel injection that is done from the cam position sensor on the driver side head..
Crank sensor signal provides RPM/Tach feedback for idle control, Ignition timing, signals for the fuel pump operation and many other functions.
.
Did you notice the OX Sensor 'switching' for bank 1 is much lazier than bank 2?
Good luck.
The crank sensor is the reference signal to the PCM for all functions that need a time reference except fuel injection that is done from the cam position sensor on the driver side head..
Crank sensor signal provides RPM/Tach feedback for idle control, Ignition timing, signals for the fuel pump operation and many other functions.
.
Did you notice the OX Sensor 'switching' for bank 1 is much lazier than bank 2?
Good luck.
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Freshman User
Joined: Oct 2014
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the 2 data graphs I posted look pretty consistent with each other. The freeze switch was just when I caught it. For Bank 1 to be a miss shouldnt Bank 2 show a change where Bank 1 would stay the same/missing.
What are you thinking? Im stuck....
If it were mechanical miss it shouldnt be intermittent as this is and cutting the key off and turning it back on should still have the miss
What are you thinking? Im stuck....
If it were mechanical miss it shouldnt be intermittent as this is and cutting the key off and turning it back on should still have the miss
Hotshot
Joined: Jan 2004
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From: St Louis
Mode 6 i have no test 53 to id the cylinders
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Freshman User
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The first couple of years of OBDII it wasn't TID $53, it was TID $51, IIRC. You can check the applicable OBDII manual to check for certain. Those can be downloaded for free from Motorcraft Technical Resource
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Tomorrow at work im gonna look up wiring to the injector. Friend was saying somethin along the line of a ground or power feed to the injectors may be breaking down. Im gonna noid light #1 in comparison with others on the bank. Maybe ill find #1 is dimmer pointing towards a harness issue which would be why the other pcm changed nothing....
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