Originally posted by dougie30
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Edit: got fuel now but no spark! help!
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Originally posted by jlevie View PostI have no idea what would happen if you test with a magnet. Test with a plain piece of iron/steel. And when doing the test use DME pins 47/48.M30 is God's motor.....but Jesus drives an M60'd car -slammin.e28
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Originally posted by dougie30 View Postlol i thought you where supposed to check with a magnet? damn well ill check with plane steel now.. but i do have continuity between 47 and 48
The trouble shooting guide I posted says:
2) Check the resistance across DME 47 & 48, which should be 500-560 ohms. If
the CPS is dismounted, the resistance can be seen to change from about 500 to
540-560 ohms when a ferrous object is brought to the face of the
sensor. Neither pin should be grounded.
I thought that was pretty clear and if followed exactly will tell if the CPS signal can reach the DME. It won't necessarily tell you if the CPS is good. For that you have to look at the signal with an oscilloscope while cranking.Last edited by jlevie; 05-03-2013, 05:34 PM.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL
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Originally posted by jlevie View PostContinuity between 47/48 will occur whether the CPS or CylID connectors are swapped. Or in the case of a short in the sensor or engine harness wiring.
The trouble shooting guide I posted says:
2) Check the resistance across DME 47 & 48, which should be 500-560 ohms. If
the CPS is dismounted, the resistance can be seen to change from about 500 to
540-560 ohms when a ferrous object is brought to the face of the
sensor. Neither pin should be grounded.
I thought that was pretty clear and if followed exactly will tell if the CPS signal can reach the DME. It won't necessarily tell you if the CPS is good. For that you have to look at the signal with an oscilloscope while cranking.
So I'm checking what pins for continuity from DME to the plug and one was pin 31, looked it up and it had something to do with the throttle... So I was like uhhh what? Then it clicked, I had the throttle plug, cups and the one from the spark plug wires all mixed together 3 ways.
Switches all 3 and the car fired right up.
Everyone says " check if the cps plug and reference plug are mixed up" but there are 3 plugs to always double check because the one on the throttle position sensor is the exact same as the other 2.
I knew it would be something little.. Thanks for the help guys I really appreciate it :up:M30 is God's motor.....but Jesus drives an M60'd car -slammin.e28
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