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Discussion Starter #1
Hi

Have a big problem I cant crack on a 156 JTS .... after missfiring for a while intermittently, but always when cold ..... this has ground to a hault . Checked everything , spark fuel pressure ect , car runs fine when carb spray is squirted in. Checked the output on the ECU to the injectors, this is Ok for 5 or 6 cycles then the output dissapears ???? any ideas is this due to another sensor ? or a safety feature ... what is the knock sensor for ?:

Big thanks if you can help
 

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Discussion Starter #3
Thanks for the response .... I had discouted the crank sensor as it sparks fine and runs when carb spray is squirted in ? are there 2 sensors ? 1 could be Ok and the other duff ?
 
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