crank sensor/coil power

[steveR5GTT]

right the car has been sat off the road for a year or so without being run.

i have got it turning over but have got a problem with no spark is there a way i can check the crank sensor or a way off checking the coil pack?
i have a feeling it's the sensor?
many thanks

[Junglist]

http://www.rtoc.org/boards/showthread.php?t=8129&highlight=coil+bulb

this may help ya ,,

i had the same prob last month

http://www.rtoc.org/boards/showthread.php?t=8478

turned out to be connections on tdc or aei , poss also king lead
good luck

[steveR5GTT]

i forgot to mention it's running on standalone management. so it using crank sensor not tdc and coil pack not module.
is there a way of testing the sensor?

[Woznaldo]

There should be three wires, one of which being the earth. You should be able to measure some resistance between the remaining two wires when measured with a multimeter. To correctly measure the actual voltage pulse, you'll need an oscilloscope.

Make sure the gap between the trigger wheel isn't too big.

[steveR5GTT]

ok yep three wire's to the c/s middle wire is earth. i put the meter between the other two wires and the meter reads a steady 0.36v.

also three wires to the coil pack one earth ,second live, third nothing?
is the third wire wait for a reading from the crank sensor?

[steveR5GTT]

if it's any help i'm using sen 8d3 crank sensor 3 pin with a 36-1 trigger wheel

http://www.mmcompsys.com/download_zone/6_sensors/sen_01.pdf

[steveR5GTT]

the gap is about 2mm between the sensor and the wheel.

on the senosr it has three wires + - s i have earth on the middle and 0.35/0.36 on the live. how will i test the s wire?

[Woznaldo]

What's the resistance between the 2 live wires? If it's anything like the GTT TDC sensor then it should be around 300 ohms give or take 100? That's a guess?

[steveR5GTT]

What's the resistance between the 2 live wires? If it's anything like the GTT TDC sensor then it should be around 300 ohms give or take 100? That's a guess?

ok i have done the resistance test and nothing happened so i did test on the std gtt tdc to make sure i'm doing it right and it came back with .206.
so i take it as there is no resistance and the crank sensor is at fault.

does it make a different in the way you should test as the c/s has three pins and the gtt has two pins?
i did try testing all three pins but still no reading. i just what to make sure before ordering a new c/s.
p.s thanks for the help

[Woznaldo]

It doesn't matter which way round you measure the resistance as long as it's between the 2 signal wires and NOT the earth. If you've done it this way then i'd say either your sensor or sensor wiring is at fault as you have an open circuit.