Help car won't start.

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Chase300
Posts: 207
Joined: Mon Sep 28, 2009 1:46 pm
Car: 1990 300zx TT

Post

Im reading code 55. changed the timing belt and upper plenum. I checked for spark and fuel = YES. All the car is doin is flooding itself but it is turning over. When i did the belt i had the crank sprocket aligned for TDC (notch on the oilpump). Is there a certain position that my crank angle sensor needs to be in or can i just bolt it up any which way as long as it seated in the cam sprocket correctly?? Im stumped. If i had any of the electrical mixed up i would be reading codes correct?


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Zwicked
Posts: 3133
Joined: Mon May 14, 2007 6:19 am
Car: 1990 300 ZX tt, 1990 240SX

Post

There are 5 white lines on the timing belt. One of each of those lines MUST line up with the dimple on each of the cam and crank sprockets. That is the ONLY way the engine components will be in time. If there is any doubt, take it apart and have a look. Lining up the dimples to anything else is not correct. It will never run, or at least run properly unless this is how it is.The CAS should be in about the center of it's adjustment range to be real close to 15 degrees BTDC. Once it's running and warm, and idle set, adjust the CAS so you read 15 using a timing light.

BELT LINEUP



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