Question about 1995 Nissan Maxima
T COULD BE YOUR CAMSHAFT SENSOR OR CRANKSHAFT SENSOR. SOMETIMESTHE TIMING CHAIN JUMPS A TOOTH AND CAUSES THIS TO HAPPEN ASWELL.
1. At the coils, check for battery voltage at the Red wires while cranking, the Black wires should be less than 0.05 volts while cranking. Pin 3 at the coils (each wire color at the #3 pin are different) using a scope watch for a 3 - 4 volt pulse signal while cranking. Red wire - battery voltage, Black wire is a ground and the White wire is the signal circuit
2. If there is no pulse signal to the power transistors, using a scanner check the POS counts (Position) should be 179 - 181 while cranking. If inconsistent, check the signal plate (flywheel/flex plate) for damaged teeth. If there is an RPM signal and the POS counts are correct, this crankshaft sensor is good.
3. On the front of the engine, mounted on the oil pan is the crankshaft sensor (REF) reference. Check the AC voltage while cranking, should be a clean sine wave that indicates the Top Dead Center (TDC) position of each piston. White and Black wires in a 2 pin connector
4. Check the Camshaft (phase) sensor AC voltage output. This sensor should also be a clean sine wave. This sensor detects cylinder number. This sensor is located in the front cover facing the cam gear. White and Black wires in a 2 pin connector.
Posted on Nov 07, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jan 22, 2018 | Cars & Trucks
Apr 14, 2016 | Cars & Trucks
Nov 11, 2015 | Cars & Trucks
Jul 15, 2014 | Toyota Corolla Cars & Trucks
Aug 05, 2011 | 2001 Kia Optima
Mar 03, 2010 | 1990 Nissan Maxima
Sep 17, 2009 | GMC Suburban Cars & Trucks
Apr 22, 2009 | 2003 Mitsubishi Galant
Oct 11, 2008 | Oldsmobile 98 Cars & Trucks
399 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: