Subject	PTU CAS
Posted by	dubya86 on April 16, 2010 at 1:23 PM
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In Reply To	Re: did you actually check for spark? posted by Jordan[z32] on April 16, 2010 at 01:05 PM
Message	the PTU (Power Transistor Unit) gets a signal from the computer telling the coil when to fire. The early style PTUs were recalled because of premature failure do to heat, they have aluminum tops, looks like this. [ http://dta-motorsport.com/used/ptu.jpg ] And the newer style looks like this. [ http://www.z32photoguide.com/ptu.html ] the CAS (Crank Angle Sensor) tells the computer where the Crankshaft is so that it knows what part of the engine cycle is going on. seen here. [ http://www.z32photoguide.com/images/3sensorloc.jpg ] I would check your connections at both the PTU and CAS... and to be honest you seem to be having the same problem I am having, but those where the things everyone has said to check first. *82 Degrees, sun is shining, T-tops are off, windows are down, cruising down the highway at 80 MPH, and the only music I can here is coming from my exhaust... this is what owning a Z32 is all about.*
Follow Ups	5th cylinder not firing - Jordan[z32] 11:57:47 04/16/10 did you actually check for spark? - dubya86 12:11:18 04/16/10 Re: did you actually check for spark? - Jordan[z32] 13:05:26 04/16/10 PTU CAS - dubya86 13:23:54 04/16/10 Re: PTU CAS - Jordan[z32] 12:01:54 04/21/10 Also, might swap the spark plug. - Draker (Eugene, OR) 14:12:10 04/16/10
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