Guest daz 6576 Posted January 29, 2010 Share Posted January 29, 2010 what symptoms would you have if your crank sensor wasnt working properly??? as i have a missfire problem Quote Link to comment Share on other sites More sharing options...
Terminator Posted January 29, 2010 Share Posted January 29, 2010 Have you got an engine code showing? Quote Link to comment Share on other sites More sharing options...
Guest daz 6576 Posted January 29, 2010 Share Posted January 29, 2010 i havent tried as yet but just want to know what would happen mate Quote Link to comment Share on other sites More sharing options...
merckx Posted January 29, 2010 Share Posted January 29, 2010 as i have a missfire problem Search the diagnostics pdf for "misfire" , only one "s". You can use the search function to find every location in the pdf where a particular word occurs. http://www.turbosupras.com/pages/pages/technical/jza80/a80tsrm.htm Quote Link to comment Share on other sites More sharing options...
absz Posted January 30, 2010 Share Posted January 30, 2010 lazy crank sensor systems will be cranking over for longer than normal to start as the cam/crank can go out sync and back firing/popping due to mis-timed firing. you need to find out if its a mis-fire on one cylinder or random misfires on different cylinders. if you do not have access to any diagnostic equipment then the best option is to remove plugs and inspect straight after a run when the engine is misfiring. Quote Link to comment Share on other sites More sharing options...
Ian C Posted January 31, 2010 Share Posted January 31, 2010 A failed crank sensor generally results in the car not starting, or if it's really stroppy it'll catch but run like a bag of spanners as the timing is out. Check out the misfire diagnosis thread: http://www.mkivsupra.net/vbb/showthread.php?t=35931 See if any of those match your (as yet undescribed ) symptoms. -Ian Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 1, 2010 Share Posted February 1, 2010 Put a `scope on the crank trigger output and see what the trace does when it's misfiring? They are usually very reliable unless damaged during a butchered cam belt change. Quote Link to comment Share on other sites More sharing options...
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