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just want to know if we are going mad or what! the manuals & various searches have told me that the timming should read 15btdc ..... when we rebuilt my engine i set the timming up & when running we could not get it below 27btdc..on conzult & 35ish on gun..so me & Dan have redone the cam belt & while we were doing so john popped over in his 300zx tt so we checked his tmming & his read about the same 25 on conzlt 35 on gun is there something we are missing or is his zed timming out too?

 

all readings were taken on a warm engine in Netural al fans off etc..

 

will be checking mine now its been done again on friday night once the rad is filled up & intake hoses back on!

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WAX MY RIDE

If car was originally an Auto and has been converted to Manual but the neutral pin at ECU was not grounded when this was done then Conzult will show as 25 instead of 15.....although timing will still be 15.

 

If the gun reading is incorrect then is it connected right ? ... From another thread (trigger and non trigger type explained) - http://www.300zx.co.uk/forums/showpost.php?p=1016935&postcount=4

Edited January 22, 200917 yr by Yowser

If car was originally an Auto and has been converted to Manual but the neutral pin at ECU was not grounded when this was done then Conzult will show as 25 instead of 15.....although timing will still be 15.

 

If the gun reading is incorrect then is it connected right ? ... From another thread (trigger and non trigger type explained) - http://www.300zx.co.uk/forums/showpost.php?p=1016935&postcount=4

 

the conzult & gun seem to mach up so i'm guessing the gun is fine also its an auto..so should read 15....is this correct?

Legrath is correct in his explaination of the neutral switch when doing a manual conversion, however as your is still an auto the park / neutral switch in the auto box selector could be faulty or disconnected and causing the same problem.

 

You need to check this out on the ConZult, also check the hard idle switch this must be closed at idle or will again advance the timing.

 

 

Jeff TT